1976,10000.0,10000.0
1977,9281.2618,9215.649
1978,9885.7197,9756.9082
1979,11710.427,11517.425
1980,15509.067,15193.239
1981,14752.55,14402.241
1982,17924.065,17422.847
1983,21949.377,21132.846
1984,23315.074,22446.111
1985,30692.293,29454.943
1986,36407.253,34774.475
1987,38292.406,36410.597
1988,44609.936,42316.969
1989,58702.304,55589.213
1990,56870.986,53741.335
1991,74159.426,69982.908
1992,79803.551,75178.046
1993,87831.507,82613.237