| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 1 |
3.4%
|
|
| 2001 | 1 |
3.4%
|
|
| 2005 | 2 |
6.9%
|
|
| 2007 | 1 |
3.4%
|
|
| 2008 | 2 |
6.9%
|
|
| 2010 | 2 |
6.9%
|
|
| 2012 | 1 |
3.4%
|
|
| 2013 | 2 |
6.9%
|
|
| 2014 | 1 |
3.4%
|
|
| 2015 | 2 |
6.9%
|
|
| 2016 | 1 |
3.4%
|
|
| 2017 | 6 |
20.7%
|
|
| 2018 | 3 |
10.3%
|
|
| 2019 | 4 |
13.8%
|
|
| Sysmiss | 1854 |