| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 300 |
2.2%
|
|
| 2011 | 1155 |
8.3%
|
|
| 2012 | 1015 |
7.3%
|
|
| 2013 | 2357 |
16.9%
|
|
| 2014 | 3937 |
28.3%
|
|
| 2015 | 4358 |
31.3%
|
|
| 2016 | 810 |
5.8%
|
|
| Sysmiss | 69775 |