4% Est. 1989 4.483943 0.223018 3.8744% 1988 1.167472 0.856552 3.3218% 1987 16.771970 0.059623 3.1640% 1986 14.224557 0.070301 2.6144% 1985 3.281056 0.304780 2.9715% 1984 7.804496 0.128131 3.6576% 1983 3.417732 0.292592 3.8998% 1982 13.332639 0.075004 6.3831% 1981 14.030542 0.071273 9.6843% 1980 10.202853 0.098012 9.0330% 1979 0.438283 2.281629 8.8650% 1978 9.890671 0.101105 7.2813% 1977 1.785135 0.560182 6.6558% 1976 4.322025 0.231373 6.4073% 1975 2.683273 0.372679 9.8159% 1974 7.605501 0.131484 9.0909% 1973 3.928442 0.254554 6.4509% 1972 1.795343 0.556996 4.7304% 1971 1.436884 0.695950 5.7132% 1970 3.157937 0.316662 5.5272% 1969 5.378369 0.185930 5.5714% 1968 2.142028
singled