| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 9 |
0.4%
|
|
| 2001 | 11 |
0.5%
|
|
| 2002 | 87 |
4.3%
|
|
| 2003 | 376 |
18.4%
|
|
| 2004 | 364 |
17.8%
|
|
| 2005 | 391 |
19.2%
|
|
| 2006 | 435 |
21.3%
|
|
| 2007 | 367 |
18%
|
|
| Sysmiss | 1659 |