YEAR CORRS RBAR SDEV SERR EPS CORES 1850. 15. 0.2765 0.2312 0.0597 0.8141 11.46 1875. 66. 0.2701 0.3088 0.0380 0.8584 16.38 1900. 105. 0.3954 0.2413 0.0235 0.9283 19.80 1925. 210. 0.2260 0.3691 0.0255 0.8653 22.00 1950. 231. 0.1461 0.4247 0.0279 0.7973 22.98