0.313836 3.6576% 1983 4.421274 0.226179 3.8998% 1982 0.391769 2.552526 6.3831% 1981 3.745065 0.267018 9.6843% 1980 0.363145 2.753724 9.0330% 1979 0.512730 1.950346 8.8650% 1978 2.745263 0.364264 7.2813% 1977 0.405891 2.463715