| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 1 |
0.6%
|
|
| 2001 | 1 |
0.6%
|
|
| 2002 | 3 |
1.8%
|
|
| 2004 | 2 |
1.2%
|
|
| 2005 | 8 |
4.9%
|
|
| 2006 | 8 |
4.9%
|
|
| 2007 | 19 |
11.6%
|
|
| 2008 | 47 |
28.7%
|
|
| 2009 | 61 |
37.2%
|
|
| 2010 | 12 |
7.3%
|
|
| 2011 | 2 |
1.2%
|
|
| Sysmiss | 10686 |