| Value | Category | Cases | |
|---|---|---|---|
| 2002 | 1 |
1.5%
|
|
| 2004 | 1 |
1.5%
|
|
| 2006 | 1 |
1.5%
|
|
| 2008 | 1 |
1.5%
|
|
| 2009 | 2 |
2.9%
|
|
| 2010 | 4 |
5.9%
|
|
| 2011 | 1 |
1.5%
|
|
| 2012 | 4 |
5.9%
|
|
| 2013 | 2 |
2.9%
|
|
| 2014 | 2 |
2.9%
|
|
| 2015 | 2 |
2.9%
|
|
| 2016 | 2 |
2.9%
|
|
| 2017 | 7 |
10.3%
|
|
| 2018 | 17 |
25%
|
|
| 2019 | 21 |
30.9%
|
|
| Sysmiss | 3858 |