1975 8.013451 0.124790 9.8159% 1974 7.714476 0.129626 9.0909% 1973 3.807703 0.262625 6.4509% 1972 6.370053 0.156985 4.7304% 1971 0.378192 2.644163 5.7132% 1970 6.176549 0.161903 5.5272% 1969 4.913850 0.203506 5.5714%