| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 1 |
0.3%
|
|
| 2001 | 2 |
0.5%
|
|
| 2002 | 123 |
31.2%
|
|
| 2003 | 210 |
53.3%
|
|
| 2004 | 58 |
14.7%
|
|
| Sysmiss | 1 |