| Value | Category | Cases | |
|---|---|---|---|
| 2008 | 1 |
0.2%
|
|
| 2010 | 1 |
0.2%
|
|
| 2012 | 1 |
0.2%
|
|
| 2013 | 2 |
0.4%
|
|
| 2014 | 2 |
0.4%
|
|
| 2015 | 111 |
19.5%
|
|
| 2016 | 449 |
78.8%
|
|
| 2017 | 3 |
0.5%
|
|
| Sysmiss | 4251 |