YEAR CORRS RBAR SDEV SERR EPS CORES 1950. 120. 0.2873 0.1997 0.0182 0.8657 16.00 1960. 120. 0.3291 0.2142 0.0196 0.8870 16.00 1970. 120. 0.4749 0.2277 0.0208 0.9354 16.00 1980. 120. 0.5213 0.2415 0.0221 0.9457 16.00