| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 2 |
2.4%
|
|
| 2003 | 4 |
4.7%
|
|
| 2004 | 4 |
4.7%
|
|
| 2005 | 4 |
4.7%
|
|
| 2006 | 5 |
5.9%
|
|
| 2007 | 9 |
10.6%
|
|
| 2008 | 7 |
8.2%
|
|
| 2009 | 11 |
12.9%
|
|
| 2010 | 11 |
12.9%
|
|
| 2011 | 11 |
12.9%
|
|
| 2012 | 11 |
12.9%
|
|
| 2013 | 6 |
7.1%
|
|
| Sysmiss | 10831 |