0.420003 6.3831% 1981 11.463483 0.087234 9.6843% 1980 3.049812 0.327889 9.0330% 1979 0.389632 2.566521 8.8650% 1978 0.651034 1.536018 7.2813% 1977 4.398661 0.227342 6.6558% 1976 7.512195 0.133117 6.4073% 1975 0.241613 4.138850 9.8159% 1974 0.366343 2.729680 9.0909% 1973 0.209749 4.767602 6.4509% 1972 4.043619 0.247303 4.7304% 1971 0.400358 2.497767 5.7132% 1970 3.206079 0.311908 5.5272% 1969 3.133918 0.319089 5.5714% 1968 3.278370 0.305030 5.0148% 1967 1.407835 0.710311 2.5719% 1966
naive