| Value | Category | Cases | |
|---|---|---|---|
| 1986/1987 | 1 |
0%
|
|
| 1988/1989 | 1 |
0%
|
|
| 1989/1990 | 6 |
0.1%
|
|
| 1990/1991 | 12 |
0.2%
|
|
| 1991/1992 | 16 |
0.2%
|
|
| 1992/1993 | 26 |
0.4%
|
|
| 1993/1994 | 58 |
0.8%
|
|
| 1994/1995 | 169 |
2.3%
|
|
| 1995/1996 | 320 |
4.4%
|
|
| 1996/1997 | 716 |
9.8%
|
|
| 1997/1998 | 5970 |
81.8%
|