- 19746,152
- 1975 to 19766,801
- 1977 to 19798,486
- 1980 to 19813,583
- 1982 to 19844,554
- 1985 to 19865,129
- 1987 to 19894,709
- 1990 to 19911,987
- 1992 to 19943,821
- 1995 to 19963,515
- 19971,464
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