| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 1 |
0.6%
|
|
| 2002 | 1 |
0.6%
|
|
| 2003 | 1 |
0.6%
|
|
| 2004 | 2 |
1.1%
|
|
| 2005 | 1 |
0.6%
|
|
| 2006 | 2 |
1.1%
|
|
| 2008 | 59 |
32.8%
|
|
| 2009 | 113 |
62.8%
|
|
| Sysmiss | 11142 |