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| 1988 | 1 | 2 | 3 | 4 | ||||||
| 1989 | 1 | 2 | 3 | 4 | ||||||
| 1990 | 1 | 2 | 3 | 4 | 5 | |||||
| 1991 | 1 | 2 | 3 | 4 | 5 | |||||
| 1992 | 1 | 2 | 3 | 4 | 5 | |||||
| 1993 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |||
| 1994 | 1-2 | 3 | 4 | 5 | 6 | 7 | 8 | |||
| 1995 | 1-2 | 3 | 4 | 5-6-7 | 8 | |||||
| 1996 | 1 | 2 | 3-4 | 5 | 6 | 7-8 | 9 | 10 | ||
| 1997 | 1 | 2 | 3-4 | 5 | 6-8 | |||||
| 1998 | 1-2 | 3-4-5 | 6-7 | 7 | 8 | 9-10 | ||||
| 1999 | 1-2 | 3 | 4-5 | 6 | 7-8 | 9 | 10 | |||
| 2000 | 1-2 | 3 | 4-5 |
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