- 19745,665
- 1975 to 19766,349
- 1977 to 19798,032
- 1980 to 19813,352
- 1982 to 19844,314
- 1985 to 19864,892
- 1987 to 19894,443
- 1990 to 19911,729
- 1992 to 19942,385
- 1995 to 19962,641
- 19971,288
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