| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 2 |
0.9%
|
|
| 2011 | 18 |
8.1%
|
|
| 2012 | 29 |
13.1%
|
|
| 2013 | 40 |
18.1%
|
|
| 2014 | 101 |
45.7%
|
|
| 2015 | 22 |
10%
|
|
| 2016 | 9 |
4.1%
|
|
| Sysmiss | 12662 |