| Value | Category | Cases | |
|---|---|---|---|
| 1994 | 1 |
0.6%
|
|
| 2002 | 1 |
0.6%
|
|
| 2003 | 9 |
5.5%
|
|
| 2004 | 59 |
35.8%
|
|
| 2005 | 66 |
40%
|
|
| 2006 | 29 |
17.6%
|
|
| Sysmiss | 100 |