YEAR CORRS RBAR SDEV SERR EPS CORES 1900. 6. 0.6039 0.1193 0.0487 0.9444 11.15 1920. 66. 0.4321 0.2561 0.0315 0.9290 17.20 1930. 190. 0.3591 0.2394 0.0174 0.9181 20.00 1940. 190. 0.3403 0.2518 0.0183 0.9116 20.00 1950. 190. 0.2381 0.2669 0.0194 0.8620 20.00 1960. 190. 0.3428 0.2328 0.0169 0.9125 20.00 1970. 190. 0.3564 0.1865 0.0135 0.9172 20.00 1980. 190. 0.2244 0.2151 0.0156 0.8526 20.00