YEAR CORRS RBAR SDEV SERR EPS CORES 1900. 36. 0.4763 0.3112 0.0519 0.9338 15.50 1910. 91. 0.3345 0.3383 0.0355 0.9191 22.60 1920. 276. 0.3070 0.3135 0.0189 0.9195 25.80 1930. 325. 0.3345 0.2904 0.0161 0.9289 26.00 1940. 325. 0.5415 0.2453 0.0136 0.9685 26.00 1950. 325. 0.4012 0.2672 0.0148 0.9457 26.00 1960. 325. 0.3494 0.2771 0.0154 0.9332 26.00 1970. 325. 0.1262 0.4097 0.0227 0.7897 26.00