1976   10000.000   10000.000
1977   9281.2618   9215.6490
1978   9885.7197   9756.9082
1979   11710.427   11517.425
1980   15509.067   15193.239
1981   14752.550   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