| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 1 |
0.3%
|
|
| 2011 | 24 |
6.4%
|
|
| 2012 | 53 |
14.2%
|
|
| 2013 | 78 |
20.9%
|
|
| 2014 | 97 |
25.9%
|
|
| 2015 | 119 |
31.8%
|
|
| 2016 | 2 |
0.5%
|
|
| Sysmiss | 12149 |