| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 115 |
2.9%
|
|
| 2011 | 327 |
8.3%
|
|
| 2012 | 471 |
11.9%
|
|
| 2013 | 678 |
17.1%
|
|
| 2014 | 1472 |
37.2%
|
|
| 2015 | 864 |
21.8%
|
|
| 9998 | 34 |
0.9%
|
|
| Sysmiss | 3395 |