8.790024 0.113765 3.3218% 1987 14.674615 0.068145 3.1640% 1986 16.027933 0.062391 2.6144% 1985 14.785946 0.067632 2.9715% 1984 3.485433 0.286908 3.6576% 1983 14.429759 0.069301 3.8998% 1982 13.158233 0.075998 6.3831% 1981 7.230814