DATE Q P INC 1960 5.59 3.45 605.0895 1961 5.8 3.45 620.928 1962 6.15 3.37 657.1916 1963 6.33 3.4 683.6544 1964 6.58 3.39 719.691 1965 6.97 3.34 763.0926 1966 7.38 3.24 808.4439 1967 7.87 3.2 830.3237 1968 8.03 3.11 868.4894 1969 8.54 3.05 893.1093 1970 8.88 2.99 891.5632 1971 9.16 3.07 921.3754 1972 9.58 3.17 973.7378 1973 9.68 3.21 1030.33 1974 9.33 3.7 1024.9 1975 9.27 3.83 1013.46 1976 9.79 3.94 1072.646 1977 9.69 4.3 1129.152 1978 10.14 4.38 1187.589 1979 9.25 4.69 1220.267 1980 8.98 5.26 1218.294 1981 8.92 5.5 1263.556 1982 8.58 5.93 1229.562 1983 8.41 6.33 1264.674 1984 8.54 6.32 1331.542 1985 8.68 6.1 1359.131