| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 2 |
1.2%
|
|
| 2001 | 2 |
1.2%
|
|
| 2002 | 2 |
1.2%
|
|
| 2003 | 3 |
1.7%
|
|
| 2004 | 3 |
1.7%
|
|
| 2005 | 6 |
3.5%
|
|
| 2006 | 7 |
4.1%
|
|
| 2007 | 18 |
10.5%
|
|
| 2008 | 43 |
25%
|
|
| 2009 | 82 |
47.7%
|
|
| 2010 | 4 |
2.3%
|
|
| Sysmiss | 8631 |