| Value | Category | Cases | |
|---|---|---|---|
| 1983 | 1 |
1.3%
|
|
| 1985 | 2 |
2.6%
|
|
| 1987 | 1 |
1.3%
|
|
| 1991 | 1 |
1.3%
|
|
| 1993 | 3 |
3.8%
|
|
| 1994 | 1 |
1.3%
|
|
| 1995 | 1 |
1.3%
|
|
| 1996 | 2 |
2.6%
|
|
| 1997 | 1 |
1.3%
|
|
| 1999 | 5 |
6.4%
|
|
| 2000 | 1 |
1.3%
|
|
| 2001 | 1 |
1.3%
|
|
| 2003 | 5 |
6.4%
|
|
| 2004 | 1 |
1.3%
|
|
| 2005 | 4 |
5.1%
|
|
| 2006 | 1 |
1.3%
|
|
| 2007 | 4 |
5.1%
|
|
| 2008 | 2 |
2.6%
|
|
| 2009 | 6 |
7.7%
|
|
| 2010 | 3 |
3.8%
|
|
| 2011 | 4 |
5.1%
|
|
| 2012 | 1 |
1.3%
|
|
| 2013 | 4 |
5.1%
|
|
| 2014 | 2 |
2.6%
|
|
| 2015 | 3 |
3.8%
|
|
| 2016 | 2 |
2.6%
|
|
| 2017 | 4 |
5.1%
|
|
| 2018 | 3 |
3.8%
|
|
| 2019 | 3 |
3.8%
|
|
| 2020 | 5 |
6.4%
|
|
| 2021 | 1 |
1.3%
|
|
| Sysmiss | 31931 |