1971 5.842231 0.171167 5.7132% 1970 1.359229 0.735711 5.5272% 1969 1.228396 0.814070 5.5714% 1968 5.164529 0.193628 5.0148% 1967 2.346383 0.426188 2.5719% 1966 4.860795 0.205728 3.5485% 1965 2.238395 0.446749 2.7360% 1964