Year  G   Pg  Y   Pnc   Puc   Ppt   Pd    Pn    Ps 
1960 129.7   .925  6036  1.045   .836   .810   .444   .331   .302 
1961 131.3   .914 6113  1.045   .869   .846   .448   .335   .307 
1962 137.1   .919  6271  1.041 .948   .874   .457   .338   .314 
1963 141.6   .918  6378  1.035   .960   .885 .463   .343   .320 
1964 148.8   .914  6727  1.032  1.001   .901   .470   .347 .325 
1965 155.9   .949  7027  1.009   .994   .919   .471   .353   .332 
1966 164.9   .970  7280   .991   .970   .952   .475   .366   .342 
1967 171.0  1.000 7513  1.000  1.000  1.000   .483   .375   .353 
1968 183.4  1.014  7728  1.028 1.028  1.046   .501   .390   .368 
1969 195.8  1.047  7891  1.044  1.031  1.127 .514   .409   .386 
1970 207.4  1.056  8134  1.076  1.043  1.285   .527   .427 .407 
1971 218.3  1.063  8322  1.120  1.102  1.377   .547   .442   .431 
1972 226.8  1.076  8562  1.110  1.105  1.434   .555   .458   .451 
1973 237.9  1.181 9042  1.111  1.176  1.448   .566   .497   .474 
1974 225.8  1.599  8867  1.175 1.226  1.480   .604   .572   .513 
1975 232.4  1.708  8944  1.276  1.464  1.586 .659   .615   .556 
1976 241.7  1.779  9175  1.357  1.679  1.742   .695   .638 .598 
1977 249.2  1.882  9381  1.429  1.828  1.824   .727   .671   .648 
1978 261.3  1.963  9735  1.538  1.865  1.878   .769   .719   .698 
1979 248.9  2.656 9829  1.660  2.010  2.003   .821   .800   .756 
1980 226.8  3.691  9722  1.793 2.081  2.516   .892   .894   .839 
1981 225.6  4.109  9769  1.902  2.569  3.120 .957   .969   .926 
1982 228.8  3.894  9725  1.976  2.964  3.460  1.000  1.000 1.000 
1983 239.6  3.764  9930  2.026  3.297  3.626  1.041  1.021  1.062 
1984 244.7  3.707 10421  2.085  3.757  3.852  1.038  1.050  1.117 
1985 245.8  3.738 10563  2.152  3.797  4.028  1.045  1.075  1.173 
1986 269.4  2.921 10780  2.240 3.632  4.264  1.053  1.069  1.224