| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.4%
|
|
| 2009 | 1 |
0.4%
|
|
| 2010 | 2 |
0.7%
|
|
| 2011 | 1 |
0.4%
|
|
| 2012 | 1 |
0.4%
|
|
| 2013 | 3 |
1.1%
|
|
| 2014 | 11 |
4%
|
|
| 2015 | 40 |
14.5%
|
|
| 2016 | 102 |
37.1%
|
|
| 2017 | 113 |
41.1%
|
|
| Sysmiss | 12778 |