| Value | Category | Cases | |
|---|---|---|---|
| 98 | 1 |
0.5%
|
|
| 99 | 1 |
0.5%
|
|
| 1998 | 1 |
0.5%
|
|
| 1999 | 2 |
1%
|
|
| 2000 | 5 |
2.4%
|
|
| 2001 | 4 |
1.9%
|
|
| 2002 | 14 |
6.7%
|
|
| 2003 | 101 |
48.6%
|
|
| 2004 | 79 |
38%
|
|
| Sysmiss | 839 |