| Value | Category | Cases | |
|---|---|---|---|
| 1995 | 105 |
2.9%
|
|
| 1996 | 471 |
13.1%
|
|
| 1997 | 526 |
14.6%
|
|
| 1998 | 603 |
16.8%
|
|
| 1999 | 1029 |
28.6%
|
|
| 2000 | 853 |
23.7%
|
|
| 9997 | Inconsistent | 6 |
0.2%
|
| 9998 | DK | 0 |
0%
|
| Sysmiss | 24009 |