| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 427 |
1.6%
|
|
| 2011 | 1684 |
6.3%
|
|
| 2012 | 2194 |
8.2%
|
|
| 2013 | 3999 |
15%
|
|
| 2014 | 9313 |
34.8%
|
|
| 2015 | 7648 |
28.6%
|
|
| 2016 | 1465 |
5.5%
|
|
| Sysmiss | 56977 |