| Value | Category | Cases | |
|---|---|---|---|
| 1999 | 1 |
1.9%
|
|
| 2002 | 1 |
1.9%
|
|
| 2003 | 1 |
1.9%
|
|
| 2004 | 1 |
1.9%
|
|
| 2010 | 1 |
1.9%
|
|
| 2011 | 4 |
7.7%
|
|
| 2014 | 2 |
3.8%
|
|
| 2015 | 2 |
3.8%
|
|
| 2016 | 23 |
44.2%
|
|
| 2017 | 16 |
30.8%
|
|
| Sysmiss | 33398 |