6.6558% 1976 0.481532 2.076706 6.4073% 1975 1.572951 0.635748 9.8159% 1974 3.698714 0.270364 9.0909% 1973 7.071606 0.141411 6.4509% 1972 5.961827 0.167734 4.7304% 1971 5.999898 0.166670 5.7132% 1970 1.621607