| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 1021 |
1.6%
|
|
| 2011 | 4929 |
7.6%
|
|
| 2012 | 6901 |
10.6%
|
|
| 2013 | 8284 |
12.8%
|
|
| 2014 | 19626 |
30.3%
|
|
| 2015 | 18237 |
28.1%
|
|
| 2016 | 5802 |
9%
|
|
| Sysmiss | 18907 |