| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 9 |
0.1%
|
|
| 2011 | 41 |
0.6%
|
|
| 2012 | 789 |
11.2%
|
|
| 2013 | 1642 |
23.2%
|
|
| 2014 | 4219 |
59.6%
|
|
| 2015 | 353 |
5%
|
|
| 2016 | 21 |
0.3%
|
|
| Sysmiss | 5809 |