Est. 1989 8.873193 0.112699 3.8744% 1988 0.475216 2.104305 3.3218% 1987 15.447808 0.064734 3.1640% 1986 18.966275 0.052725 2.6144% 1985 14.986345 0.066727 2.9715% 1984 8.349098 0.119773 3.6576% 1983 6.835634 0.146292 3.8998% 1982 2.512535 0.398004 6.3831% 1981 0.465969 2.146063 9.6843% 1980 0.377670 2.647812 9.0330% 1979 1.587895 0.629765 8.8650% 1978 4.845760 0.206366 7.2813% 1977
strengthens