| Value | Category | Cases | |
|---|---|---|---|
| 2009 | 2 |
1.9%
|
|
| 2010 | 92 |
87.6%
|
|
| 2011 | 9 |
8.6%
|
|
| 2012 | 2 |
1.9%
|
|
| Sysmiss | 1532 |