| Value | Category | Cases | |
|---|---|---|---|
| 2009 | 24 |
0.5%
|
|
| 2010 | 241 |
5%
|
|
| 2011 | 433 |
9.1%
|
|
| 2012 | 768 |
16.1%
|
|
| 2013 | 1585 |
33.2%
|
|
| 2014 | 1723 |
36.1%
|
|
| Sysmiss | 16190 |