| Value | Category | Cases | |
|---|---|---|---|
| 888 | 94 |
8%
|
|
| 1998 | 4 |
0.3%
|
|
| 1999 | 30 |
2.5%
|
|
| 2000 | 165 |
14%
|
|
| 2001 | 372 |
31.6%
|
|
| 2002 | 403 |
34.2%
|
|
| 2003 | 92 |
7.8%
|
|
| 2004 | 17 |
1.4%
|
|
| Sysmiss | 1 |