YEAR CORRS RBAR SDEV SERR EPS CORES 1950. 120. 0.6025 0.2048 0.0187 0.9604 16.00 1960. 120. 0.5159 0.1989 0.0182 0.9446 16.00 1970. 120. 0.4152 0.2390 0.0218 0.9191 16.00 1980. 120. 0.3822 0.2749 0.0251 0.9083 16.00