6.4073% 1975 0.305717 3.270994 9.8159% 1974 1.090909 0.916667 9.0909% 1973 2.239810 0.446466 6.4509% 1972 3.661455 0.273115 4.7304% 1971 5.285911 0.189182 5.7132% 1970 1.757313 0.569050 5.5272% 1969 0.249642 4.005733 5.5714% 1968