| Value | Category | Cases | |
|---|---|---|---|
| 2003 | 1 |
2.9%
|
|
| 2004 | 1 |
2.9%
|
|
| 2006 | 3 |
8.8%
|
|
| 2007 | 3 |
8.8%
|
|
| 2008 | 2 |
5.9%
|
|
| 2009 | 1 |
2.9%
|
|
| 2010 | 3 |
8.8%
|
|
| 2011 | 4 |
11.8%
|
|
| 2012 | 6 |
17.6%
|
|
| 2013 | 9 |
26.5%
|
|
| 2014 | 1 |
2.9%
|
|
| Sysmiss | 10882 |