| Value | Category | Cases | |
|---|---|---|---|
| 1994 | 14 |
1.5%
|
|
| 1995 | 94 |
10.2%
|
|
| 1996 | 102 |
11.1%
|
|
| 1997 | 108 |
11.7%
|
|
| 1998 | 144 |
15.7%
|
|
| 1999 | 109 |
11.8%
|
|
| 2000 | 126 |
13.7%
|
|
| 2001 | 106 |
11.5%
|
|
| 2002 | 114 |
12.4%
|
|
| 2003 | 3 |
0.3%
|
|
| Sysmiss | 79 |