- 19745,641
- 1975 to 19766,323
- 1977 to 19797,999
- 1980 to 19813,310
- 1982 to 19844,242
- 1985 to 19864,857
- 1987 to 19894,401
- 1990 to 19911,702
- 1992 to 19942,352
- 1995 to 19962,609
- 19971,258
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