# Summer North Atlantic Jet (NAJ) reconstruction from 1725-2012 CE #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original publication, online resource and date accessed when using this data. # If there is no publication information, please cite Investigator, title, online resource and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/23350 # Description: NOAA Landing Page # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/reconstructions/trouet2018/trouet2018-NAJ.txt # Description: NOAA location of the template # # # Archive: Climate Reconstructions # # Dataset_DOI: # # Parameter_Keywords: atmospheric circulation #--------------------------------------- # Contribution_Date # Date: 2018-01-26 #--------------------------------------- # File_Last_Modified_Date # Date: 2018-01-26 #--------------------------------------- # Title # Study_Name: Summer North Atlantic Jet (NAJ) reconstruction from 1725-2012 CE #--------------------------------------- # Investigators # Investigators: Trouet, Valerie; Babst, Flurin; Meko, Matthew #--------------------------------------- # Description_Notes_and_Keywords # Description: Tree-ring based reconstruction of the latitudinal position of the North Atlantic Jet Stream in August #--------------------------------------- # Publication # Authors: Trouet, V., F. Babst, and M. Meko # Published_Date_or_Year: 2018 # Published_Title: Recent enhanced high-summer North Atlantic Jet variability emerges from three-century context # Journal_Name: Nature Communications # Volume: 9 # Edition: # Issue: 1 # Pages: 180 # Report Number: # DOI: 10.1038/s41467-017-02699-3 # Online_Resource: https://www.nature.com/articles/s41467-017-02699-3 # Full_Citation: # Abstract: A recent increase in mid-latitude extreme weather events has been linked to Northern Hemisphere polar jet stream anomalies. To put recent trends in a historical perspective, long-term records of jet stream variability are needed. Here we combine two tree-ring records from the British Isles and the northeastern Mediterranean to reconstruct variability in the latitudinal position of the high-summer North Atlantic Jet (NAJ) back to 1725 CE. We find that northward NAJ anomalies have resulted in heatwaves and droughts in northwestern Europe and southward anomalies have promoted wildfires in southeastern Europe. We further find an unprecedented increase in NAJ variance since the 1960s, which co-occurs with enhanced late twentieth century variance in the Central and North Pacific Basin. Our results suggest increased late twentieth century interannual meridional jet stream variability and support more sinuous jet stream patterns and quasi-resonant amplification as potential dynamic pathways for Arctic warming to influence mid-latitude weather. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Science Foundation # Grant: AGS-1349942 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Swiss National Science Foundation # Grant: P300P2_154543 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: European Union-Horizon 2020 # Grant: 640176 #--------------------------------------- # Site Information # Site_Name: Eastern North Atlantic # Location: North Atlantic Ocean # Country: # Northernmost_Latitude: 90 # Southernmost_Latitude: 0 # Easternmost_Longitude: -10 # Westernmost_Longitude: -30 # Elevation: #--------------------------------------- # Data_Collection # Collection_Name: NAJ Trouet2018 # First_Year: 1725 # Last_Year: 2012 # Time_Unit: CE # Core_Length: # Notes: #--------------------------------------- # Chronology_Information # Chronology: #--------------------------------------- # Variables # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) ## year age,,,year Common Era,,,,,, ## NAJ_recon North Atlantic Jet latitudinal position,,,degrees N,August,climate reconstruction,,,,tree-ring based ## NAJ_recon_1se_min North Atlantic Jet latitudinal position,,one standard error lower bound,degrees N,August,climate reconstruction,,,,tree-ring based ## NAJ_recon_1se_plus North Atlantic Jet latitudinal position,,one standard error upper bound,degrees N,August,climate reconstruction,,,,tree-ring based ## NAJ_recon_2se_min North Atlantic Jet latitudinal position,,two standard error lower bound,degrees N,August,climate reconstruction,,,,tree-ring based ## NAJ_recon_2se_plus North Atlantic Jet latitudinal position,,two standard error upper bound,degrees N,August,climate reconstruction,,,,tree-ring based ## NAJ_instr North Atlantic Jet latitudinal position,,,degrees N,August,instrumental,,,,Twentieth Century Reanalysis; instrumental latitudinal position #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: NaN year NAJ_recon NAJ_recon_1se_min NAJ_recon_1se_plus NAJ_recon_2se_min NAJ_recon_2se_plus NAJ_instr 1725 46.94259547 40.8928174 49.36418686 40.27841 50.64066087 NaN 1726 55.13857869 52.5295119 57.71537711 51.31512 58.94008798 NaN 1727 57.41147473 55.0095358 60.38674606 53.72625 61.49360926 NaN 1728 47.47270161 44.7620567 49.63863798 43.57922 51.0086404 NaN 1729 52.23096759 49.3376078 55.5220832 48.20814 56.5487245 NaN 1730 53.97634357 51.0266355 57.09393431 49.9128 58.16334188 NaN 1731 54.05420735 51.7476628 56.45881931 50.43043 57.7411765 NaN 1732 48.96762984 46.507085 51.5464037 45.24394 52.77047844 NaN 1733 51.49664826 48.8909066 54.10238993 47.67546 55.31783557 NaN 1734 50.14576332 47.4284863 52.6344 46.24766 53.88807482 NaN 1735 52.12001405 48.9427104 54.36608606 47.88837 55.7055994 NaN 1736 54.68358276 52.3030129 56.84951913 51.01225 58.21952156 NaN 1737 47.7865753 45.5187449 49.97747893 44.18732 51.33786261 NaN 1738 53.41752927 51.0669225 55.71408904 49.76555 57.0349551 NaN 1739 50.04486602 47.8036213 52.396317 46.4623 53.69738632 NaN 1740 53.623203 51.1350491 56.05179647 49.88121 57.32585733 NaN 1741 55.59649568 53.2493465 57.83774038 51.94674 59.1790591 NaN 1742 55.01172679 52.7853523 57.23786377 51.43845 58.58485829 NaN 1743 54.34650805 52.1902296 56.31257881 50.81648 57.76367311 NaN 1744 49.3274031 47.2811001 51.3096352 45.86345 52.75389211 NaN 1745 49.28571764 47.1166909 51.52696234 45.74789 52.86828106 NaN 1746 49.25847001 47.0414312 51.39931261 45.691 52.77909352 NaN 1747 55.53194419 53.2754759 57.69744044 51.93984 59.06761341 NaN 1748 52.881916 50.9506206 54.80578732 49.48464 56.27497711 NaN 1749 53.23472158 50.967922 55.55766117 49.63612 56.86895206 NaN 1750 48.79909249 46.915315 50.74107753 45.4286 52.20245681 NaN 1751 46.03097559 43.7094698 48.27225525 42.39766 49.61356088 NaN 1752 49.7293643 47.5603376 51.97324072 46.19153 53.3135747 NaN 1753 58.45803972 56.0263648 60.77849072 54.75336 62.09068004 NaN 1754 52.8991074 50.8522429 54.89738974 49.43483 56.33490645 NaN 1755 47.97084353 45.8049072 50.16496302 44.4349 51.5241157 NaN 1756 49.07111323 47.0457636 51.17039618 45.6195 52.56662059 NaN 1757 50.75907288 48.6651707 53.05849919 47.26679 54.37831924 NaN 1758 51.62316517 49.4328576 53.86440987 48.07225 55.20572859 NaN 1759 56.1871067 54.1070092 58.23629501 52.70309 59.6527604 NaN 1760 53.8167369 51.7191464 55.84073873 50.32225 57.267558 NaN 1761 54.83037963 52.6883541 56.81531717 51.30904 58.25843445 NaN 1762 54.45470801 52.4675878 56.37857934 51.02539 57.84776912 NaN 1763 46.76838348 44.6159718 48.85746923 43.24071 50.25777628 NaN 1764 51.81035446 49.8092089 53.795292 48.37289 55.23840928 NaN 1765 54.47774154 52.4285532 56.67186104 51.01209 58.03101372 NaN 1766 54.48909081 52.2629538 56.68312997 50.91596 58.04231339 NaN 1767 53.53415745 51.5631916 55.53243979 50.11417 56.9699565 NaN 1768 48.7473508 46.8674727 50.66676477 45.37904 52.13788657 NaN 1769 50.26497757 48.0959509 52.35887975 46.72714 53.75725608 NaN 1770 53.35134975 51.2054631 55.42169481 49.82766 56.82955496 NaN 1771 49.04954023 46.8971285 50.94830257 45.52187 52.4284278 NaN 1772 48.70533035 46.5327669 50.66521507 45.16533 52.11894001 NaN 1773 55.88750334 53.7149399 57.98225341 52.3475 59.38029029 NaN 1774 48.67370112 46.7349663 50.62188213 45.27219 52.08060471 NaN 1775 52.47444766 50.6120744 54.40574307 49.11587 55.87172374 NaN 1776 52.84152358 50.8592915 54.76099197 49.41503 56.23209016 NaN 1777 49.66593835 47.7675268 51.60467319 46.28725 53.06744913 NaN 1778 53.80213158 51.817421 55.68905674 50.37421 57.17438148 NaN 1779 59.39740972 57.4562922 61.31687811 55.99454 62.7879763 NaN 1780 58.95084199 56.8769997 61.02468431 55.47055 62.43113003 NaN 1781 52.95264461 50.9023479 54.89462965 49.48634 56.35600893 NaN 1782 41.78804293 39.8058108 43.79349994 38.36155 45.22801977 NaN 1783 52.25108005 50.3526685 54.13095813 48.87239 55.61939185 NaN 1784 47.41511779 45.6046587 49.24110623 44.08505 50.75365289 NaN 1785 50.11542713 48.0651304 52.07651068 46.64912 53.52972523 NaN 1786 51.64327764 49.6146942 53.48569239 48.18977 54.99082524 NaN 1787 51.85220742 50.0358873 53.6657254 48.51895 55.18393824 NaN 1788 51.67799542 49.7981174 53.57640702 48.30968 55.05668591 NaN 1789 51.43743642 49.5363512 53.30495567 48.05724 54.79886632 NaN 1790 49.192123 47.3083455 51.09053459 45.82163 52.57081348 NaN 1791 56.24452302 54.302538 58.15129349 52.84116 59.62791724 NaN 1792 50.262224 48.4009027 52.1816924 46.90423 53.65279058 NaN 1793 46.96855007 45.0697877 48.84842814 43.58966 50.33686187 NaN 1794 51.54838995 49.6245186 53.41076325 48.15533 54.90696363 NaN 1795 51.84198369 49.9435721 53.76585501 48.46329 55.2350448 NaN 1796 50.9736773 49.0076065 52.97603279 47.55651 54.41184692 NaN 1797 45.01424431 43.0121236 46.97326275 41.57621 48.42735668 NaN 1798 54.03684846 52.0984032 55.89715236 50.6355 57.39427507 NaN 1799 42.62325956 40.6845247 44.56437707 39.22175 46.02612894 NaN 1800 52.7034899 50.8236118 54.60457512 49.33518 56.08368336 NaN 1801 53.65679524 51.7086142 55.59553008 50.24989 57.05830602 NaN 1802 47.79663153 45.811921 49.72050286 44.36871 51.18969264 NaN 1803 55.12268033 53.1839455 57.06141517 51.72117 58.52419111 NaN 1804 48.51392696 46.6713138 50.37423086 45.16627 51.87135357 NaN 1805 50.59913122 48.7201007 52.50590169 47.23129 53.98252544 NaN 1806 49.70633077 47.8264527 51.60741598 46.33802 53.08652423 NaN 1807 45.4677797 43.5666945 47.40651454 42.08759 48.86929048 NaN 1808 55.60087728 53.738504 57.46325057 52.2423 58.95945095 NaN 1809 48.50808483 46.6820964 50.32440498 45.16955 51.84134175 NaN 1810 47.46832001 45.6423316 49.29888631 44.12978 50.80936113 NaN 1811 53.59336929 51.8020767 55.3688291 50.27368 56.90453833 NaN 1812 51.37513601 49.4512647 53.2375093 47.98207 54.73370968 NaN 1813 54.40263133 52.4609791 56.38673328 50.99946 57.83020239 NaN 1814 57.94237142 56.011076 59.7806321 54.5451 61.28763451 NaN 1815 53.58623413 51.7556678 55.36375192 50.24519 56.89850711 NaN 1816 49.69301848 47.7691472 51.63500352 46.29996 53.09638281 NaN 1817 50.68542321 48.7466884 52.60929453 47.28391 54.07848432 NaN 1818 51.30637041 49.5456025 53.05828783 48.00306 54.60497579 NaN 1819 58.7808441 56.9382309 60.59130317 55.43319 62.1109109 NaN 1820 51.0833378 49.3192139 52.92072816 47.77823 54.42812272 NaN 1821 53.87415323 52.0481648 55.67020667 50.53562 57.19641011 NaN 1822 48.41611821 46.5915676 50.25437889 45.07837 51.7613813 NaN 1823 47.75769964 45.9656272 49.49261999 44.43759 51.04730926 NaN 1824 49.19082996 47.2901878 51.03675649 45.81089 52.54031165 NaN 1825 57.54804787 55.7705301 59.37259846 54.23577 60.88579677 NaN 1826 56.80934695 54.8706121 58.68837745 53.40784 60.17718579 NaN 1827 55.53745133 53.706885 57.32872575 52.19641 58.85712705 NaN 1828 49.69790256 47.87259 51.54693526 46.35974 53.04909709 NaN 1829 48.54830975 46.7100491 50.41068305 45.20305 51.90688343 NaN 1830 48.37572579 46.5331126 50.19204594 45.02807 51.70898271 NaN 1831 54.76144654 52.8707366 56.65215648 51.38708 58.13581565 NaN 1832 52.28855141 50.5110336 54.09176593 48.97628 55.61468512 NaN 1833 53.12814964 51.2791169 54.93136416 49.77696 56.45428335 NaN 1834 52.46731249 50.6897947 54.25938491 49.15504 55.78741887 NaN 1835 58.82236207 56.9841014 60.68473536 55.4771 62.18093574 NaN 1836 48.11342629 46.2708131 49.92388535 44.76577 51.44349308 NaN 1837 52.67573979 50.7958617 54.49205995 49.30743 56.00899672 NaN 1838 48.60735411 46.8432302 50.40340755 45.30225 51.92961099 NaN 1839 48.19258311 46.4150653 50.00304217 44.88031 51.5226499 NaN 1840 52.35911253 50.5785892 54.11895692 49.04523 55.66193482 NaN 1841 47.46685948 45.6913997 49.24965831 44.15569 50.7819695 NaN 1842 56.26188192 54.4159554 58.08787036 52.9124 59.60041702 NaN 1843 52.42967364 50.6264591 54.31659881 49.10354 55.80192355 NaN 1844 48.97476501 47.1715505 50.72668243 45.64863 52.27337039 NaN 1845 48.908418 47.1376969 50.66918587 45.59979 52.21173244 NaN 1846 52.93966731 51.1136789 54.7822805 49.60113 56.28732413 NaN 1847 50.698568 48.9064956 52.47608579 47.37846 54.01084098 NaN 1848 49.20526779 47.42775 50.96603566 45.89299 52.50858223 NaN 1849 50.06351795 48.25 51.81543536 46.73179 53.36212333 NaN 1850 57.29451157 55.5237905 59.02943192 53.98588 60.58412119 NaN 1851 52.66585105 50.7577355 54.50324142 49.2817 56.01063598 NaN 1852 54.87369312 53.1264475 56.65121091 51.57757 58.1859661 NaN 1853 49.16049377 47.3441736 50.93801156 45.82724 52.47276675 NaN 1854 54.58706705 52.8042682 56.35119097 51.27196 57.89217159 NaN 1855 48.65650972 46.9045923 50.42063364 45.3579 51.96161426 NaN 1856 49.45133393 47.6592615 51.22885172 46.13123 52.76360692 NaN 1857 58.88578802 57.1385424 60.64655589 55.58966 62.18910246 NaN 1858 55.45829451 53.7392097 57.19321486 52.17701 58.74790413 NaN 1859 55.2308803 53.4533625 56.95469809 51.91861 58.51464804 NaN 1860 47.04478582 45.267268 48.80890973 43.73251 50.34989036 NaN 1861 50.56036683 48.8254465 52.29528718 47.27076 53.84997645 NaN 1862 47.39775889 45.6568356 49.10634143 44.10498 50.67355454 NaN 1863 48.50241019 46.7551646 50.22622799 45.20628 51.78617794 NaN 1864 55.00751269 53.1822001 56.79031152 51.66935 58.32262271 NaN 1865 51.70248948 49.9219662 53.47321055 48.3886 55.01112 NaN 1866 46.89214682 45.1462917 48.6380019 43.59676 50.18753644 NaN 1867 48.18982954 46.3985369 49.92474989 44.87014 51.47943915 NaN 1868 56.156938 54.3961701 57.9041836 52.85362 59.45306452 NaN 1869 53.165621 51.3735486 54.94313879 49.84551 56.47789398 NaN 1870 58.34450011 56.4954674 60.14771463 54.99331 61.67063382 NaN 1871 54.24285717 52.4956116 55.97777752 50.94673 57.53246679 NaN 1872 48.03573001 46.2879763 49.78158509 44.73933 51.33111963 NaN 1873 50.69710746 48.9498619 52.40366365 47.40098 53.97184667 NaN 1874 51.62754677 49.9077633 53.33410296 48.3459 54.90228597 NaN 1875 51.40580719 49.6819894 53.12559063 48.12204 54.68745889 NaN 1876 51.91838693 50.1711413 53.67030435 48.62226 55.21699231 NaN 1877 45.0745817 43.2991219 46.83525316 41.76341 48.37784475 NaN 1878 53.99825156 52.2633312 55.74410663 50.70864 57.29364118 NaN 1879 45.67524895 43.9403286 47.39906675 42.38564 48.95901669 NaN 1880 55.85733464 54.1507785 57.59016149 52.5826 59.14584064 NaN 1881 48.56128705 46.8422022 50.30853265 45.28 51.85741357 NaN 1882 51.49502024 49.7491652 53.20360277 48.19963 54.77081588 NaN 1883 50.45216686 48.691399 52.19941246 47.14885 53.74829338 NaN 1884 56.81047249 55.0646174 58.5623899 53.51508 60.10907787 NaN 1885 48.48780487 46.754978 50.23555855 45.1993 51.78420074 NaN 1886 50.000092 48.2935358 51.7239098 46.72535 53.28385975 NaN 1887 52.88921866 51.1284508 54.63697235 49.5859 56.18561454 NaN 1888 46.32473682 44.605652 48.03129301 43.04345 49.59947603 NaN 1889 51.75569171 50.0228649 53.48851856 48.46719 55.04419771 NaN 1890 50.9692957 49.2370793 52.68907914 47.68111 54.2509474 NaN 1891 47.07658254 45.3307275 48.837254 43.78119 50.3798456 NaN 1892 48.755779 47.0229522 50.51654687 45.46727 52.05909344 NaN 1893 56.02879307 54.282938 57.77603867 52.7334 59.32491958 NaN 1894 50.39621107 48.6354432 52.12842747 47.0929 53.68439544 NaN 1895 49.95256441 48.1759283 51.74385705 46.64076 53.27224996 NaN 1896 53.1698351 51.3785425 54.96190752 49.85015 56.48994148 NaN 1897 50.64828684 48.929202 52.35484303 47.367 53.92302604 NaN 1898 53.26505777 51.5811384 54.99788462 50.00206 56.55356377 NaN 1899 56.37575652 54.6435401 58.09484133 53.08757 59.65704215 NaN 1900 54.01673599 52.3101798 55.71201928 50.742 57.28561474 NaN 1901 55.30711605 53.6118482 57.01501066 52.03825 58.58255294 NaN 1902 47.82826076 46.1217046 49.56047716 44.55352 51.11644513 NaN 1903 48.46201777 46.7667499 50.14593719 45.19315 51.72501753 NaN 1904 51.97175665 50.2652005 53.69154009 48.69702 55.25340836 NaN 1905 50.04340548 48.3481222 51.74996167 46.77453 53.31814469 NaN 1906 53.3052827 51.5861979 55.01386523 50.024 56.58107834 NaN 1907 46.45434229 44.7464477 48.20019737 43.17891 49.74973192 NaN 1908 50.43789653 48.6772251 52.15962249 47.13463 53.72056665 NaN 1909 49.03218134 47.2993545 50.79294921 45.74368 52.33549578 NaN 1910 53.53853904 51.8299565 55.22378387 50.26274 56.802223 NaN 1911 54.02695972 52.2947433 55.7728148 50.73878 57.32234934 NaN 1912 57.20204247 55.3009504 59.16093761 53.82185 60.61508407 NaN 1913 54.37684424 52.6682617 56.09592905 51.10105 57.65812987 NaN 1914 57.63141879 55.853901 59.42747223 54.31915 60.95367567 NaN 1915 55.15284902 53.4056034 56.88776937 51.85672 58.44245864 NaN 1916 50.25346081 48.5212444 51.98628766 46.96528 53.54196681 NaN 1917 49.36650248 47.6187488 51.12717395 46.07011 52.66976554 NaN 1918 50.65688254 48.9246661 52.36343873 47.3687 53.93162174 NaN 1919 53.70999747 51.9771706 55.45775115 50.42149 57.00639334 NaN 1920 48.55999401 46.8277776 50.2552773 45.27181 51.82887276 46.8 1921 52.19349623 50.4476412 53.9542641 48.89811 55.49681068 52 1922 45.23014176 43.5235856 46.93872429 41.9554 48.5059374 50.6 1923 46.48321795 44.7503911 48.21543435 43.19471 49.77140232 50 1924 50.02020446 48.2879881 51.7399879 46.73202 53.30185617 51.8 1925 55.22357763 53.4594537 56.94336108 51.91847 58.50522934 50.2 1926 54.15364412 52.4338607 55.84892741 50.87199 57.42252287 50.8 1927 46.96855007 45.2207964 48.69027603 43.67215 50.25122019 45.2 1928 49.13453918 47.3590794 50.88039425 45.82337 52.4299288 46.8 1929 51.25738229 49.5382975 53.00323737 47.9761 54.55277192 52 1930 49.18644836 47.4536215 50.89434297 45.89794 52.46188525 48.4 1931 49.95548548 48.2602176 51.67930327 46.68661 53.23925322 44 1932 50.44373866 48.7239552 52.13900654 47.16209 53.71260941 54.2 1933 62.14215809 60.2678448 63.94537261 58.77695 65.4682918 55 1934 51.08463083 49.3893475 52.80371564 47.81575 54.36591647 48.6 1935 53.1398339 51.4332777 54.85891871 49.86509 56.42111953 53.6 1936 54.67920117 52.9594177 56.39898461 51.39755 57.96085287 55.6 1937 53.72297476 52.0390553 55.40689418 50.45998 56.98597452 55.6 1938 54.44156322 52.6808918 56.18880882 51.1383 57.73768974 53.6 1939 53.13966641 51.3788985 54.8718828 49.83635 56.42785078 52 1940 54.51341738 52.7196991 56.30713567 51.19242 57.83441243 60 1941 55.9419986 54.1256784 57.7225219 52.60874 59.25588545 51.8 1942 48.54409565 46.8375395 50.25065184 45.26936 51.81883485 51.8 1943 49.2672332 47.5593386 51.03106844 45.9918 52.57218367 53.6 1944 53.29814753 51.5790627 55.0198735 50.01686 56.58081765 52.6 1945 49.57267869 47.8528953 51.29246213 46.29103 52.8543304 50.8 1946 46.15490643 44.435123 47.86348896 42.87325 49.43070207 50.8 1947 52.64736662 50.8707305 54.40803808 49.33557 55.95062967 59 1948 50.73311829 49.0265621 52.46533469 47.45838 54.02130266 48.6 1949 54.56841512 52.8445973 56.3142702 51.28465 57.86380475 53.2 1950 48.43038854 46.7106051 50.14947335 45.14874 51.71167418 47.6 1951 50.262224 48.5300076 51.95749189 46.97404 53.53109476 49.4 1952 51.15243838 49.417518 52.87222182 47.86283 54.43409008 49.4 1953 54.12915006 52.3963232 55.85087603 50.84064 57.41182018 51 1954 48.53111835 46.7982915 50.23970089 45.24261 51.806914 48 1955 57.99590863 56.2320734 59.75974386 54.69096 61.30085909 57.2 1956 44.9177286 43.1699749 46.65447681 41.62133 48.20830258 49 1957 51.38552723 49.6664424 53.11835408 48.10424 54.67403323 52 1958 48.0832576 46.3641728 49.81608445 44.80197 51.3717636 48.6 1959 59.57566832 57.8115444 61.30788471 56.27056 62.86385269 57.6 1960 51.41294236 49.6912164 53.13466832 48.13027 54.69561248 45 1961 47.95803372 46.2252069 49.67711853 44.66953 51.23931936 53.6 1962 45.20143359 43.4536799 46.92051841 41.90504 48.48271923 52 1963 47.31275995 45.5520885 49.07343141 44.0095 50.61602301 51.8 1964 51.91254481 50.1518733 53.6447612 48.60928 55.20072918 50.4 1965 51.02249792 49.2617301 52.768353 47.71918 54.31788755 51.6 1966 50.0130693 48.2492341 51.7209639 46.70812 53.28850618 46.6 1967 50.109585 48.3773686 51.82866982 46.8214 53.39087064 49.2 1968 52.95669122 51.1448047 54.75040952 49.62585 56.27768627 50.4 1969 49.92368875 48.1598535 51.65590515 46.61874 53.21187313 48.6 1970 49.04661917 47.3275344 50.76570398 45.76533 52.3279048 50.4 1971 52.598211 50.8784276 54.30476719 49.31656 55.8729502 54.6 1972 52.86877121 51.1338509 54.58855465 49.57916 56.15042291 57.8 1973 51.28625795 49.5534311 52.98152584 47.99775 54.55512871 50.4 1974 49.9914963 48.2586694 51.69939091 46.70299 53.26693319 48 1975 53.5502233 51.8173965 55.28305015 50.26172 56.8387293 52 1976 63.82264759 62.0451298 65.5981074 60.51037 67.13381662 65 1977 47.67854283 45.7606703 49.49042931 44.28888 51.00938588 51.4 1978 53.96904091 52.1077196 55.81437317 50.61105 57.31819513 52 1979 NaN NaN NaN NaN NaN 53 1980 NaN NaN NaN NaN NaN 49.2 1981 NaN NaN NaN NaN NaN 57.6 1982 NaN NaN NaN NaN NaN 52 1983 NaN NaN NaN NaN NaN 62 1984 NaN NaN NaN NaN NaN 56.8 1985 NaN NaN NaN NaN NaN 48 1986 NaN NaN NaN NaN NaN 46.6 1987 NaN NaN NaN NaN NaN 55.4 1988 NaN NaN NaN NaN NaN 50.8 1989 NaN NaN NaN NaN NaN 53.2 1990 NaN NaN NaN NaN NaN 55.2 1991 NaN NaN NaN NaN NaN 53.8 1992 NaN NaN NaN NaN NaN 48.4 1993 NaN NaN NaN NaN NaN 56 1994 NaN NaN NaN NaN NaN 51 1995 NaN NaN NaN NaN NaN 59.6 1996 NaN NaN NaN NaN NaN 47 1997 NaN NaN NaN NaN NaN 48 1998 NaN NaN NaN NaN NaN 55.4 1999 NaN NaN NaN NaN NaN 44.4 2000 NaN NaN NaN NaN NaN 48.6 2001 NaN Na