| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 151 |
2.5%
|
|
| 2011 | 272 |
4.5%
|
|
| 2012 | 1521 |
25.1%
|
|
| 2013 | 2713 |
44.7%
|
|
| 2014 | 914 |
15.1%
|
|
| 2015 | 399 |
6.6%
|
|
| 2016 | 94 |
1.6%
|
|
| Sysmiss | 6813 |