| Value | Category | Cases | |
|---|---|---|---|
| 1982 | 3 |
0.1%
|
|
| 1990 | 124 |
6%
|
|
| 1991 | 167 |
8.1%
|
|
| 1992 | 154 |
7.5%
|
|
| 1993 | 110 |
5.4%
|
|
| 1994 | 120 |
5.8%
|
|
| 1995 | 116 |
5.7%
|
|
| 1996 | 270 |
13.2%
|
|
| 1997 | 260 |
12.7%
|
|
| 1998 | 240 |
11.7%
|
|
| 1999 | 159 |
7.7%
|
|
| 2000 | 161 |
7.8%
|
|
| 2001 | 147 |
7.2%
|
|
| 2002 | 22 |
1.1%
|
|
| Sysmiss | 14468 |