| Value | Category | Cases | |
|---|---|---|---|
| 2008 | 3 |
1.1%
|
|
| 2009 | 16 |
6.1%
|
|
| 2010 | 37 |
14%
|
|
| 2011 | 74 |
28%
|
|
| 2012 | 131 |
49.6%
|
|
| 9999 | Missing | 3 |
1.1%
|
| Sysmiss | 2866 |