| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 64 |
1.5%
|
|
| 2011 | 110 |
2.5%
|
|
| 2012 | 195 |
4.5%
|
|
| 2013 | 441 |
10.1%
|
|
| 2014 | 1314 |
30.1%
|
|
| 2015 | 2213 |
50.7%
|
|
| 2016 | 27 |
0.6%
|
|
| 9999 | Not sure | 0 |
0%
|
| Sysmiss | 9993 |