| Value | Category | Cases | |
|---|---|---|---|
| 1992 | 1 |
0.5%
|
|
| 1994 | 1 |
0.5%
|
|
| 1996 | 1 |
0.5%
|
|
| 1997 | 1 |
0.5%
|
|
| 1998 | 4 |
2%
|
|
| 1999 | 2 |
1%
|
|
| 2000 | 1 |
0.5%
|
|
| 2001 | 2 |
1%
|
|
| 2002 | 3 |
1.5%
|
|
| 2004 | 2 |
1%
|
|
| 2005 | 2 |
1%
|
|
| 2006 | 4 |
2%
|
|
| 2007 | 3 |
1.5%
|
|
| 2008 | 4 |
2%
|
|
| 2009 | 6 |
3%
|
|
| 2010 | 8 |
4%
|
|
| 2011 | 7 |
3.5%
|
|
| 2012 | 4 |
2%
|
|
| 2013 | 10 |
5.1%
|
|
| 2014 | 8 |
4%
|
|
| 2015 | 8 |
4%
|
|
| 2016 | 20 |
10.1%
|
|
| 2017 | 18 |
9.1%
|
|
| 2018 | 17 |
8.6%
|
|
| 2019 | 18 |
9.1%
|
|
| 2020 | 7 |
3.5%
|
|
| 2021 | 14 |
7.1%
|
|
| 2022 | 18 |
9.1%
|
|
| 2023 | 4 |
2%
|
|
| Sysmiss | 12397 |