| Value | Category | Cases | |
|---|---|---|---|
| 1993 | 1 |
0%
|
|
| 1994 | 1 |
0%
|
|
| 1996 | 4 |
0.1%
|
|
| 1997 | 5 |
0.2%
|
|
| 1998 | 6 |
0.2%
|
|
| 1999 | 3 |
0.1%
|
|
| 2000 | 3 |
0.1%
|
|
| 2001 | 4 |
0.1%
|
|
| 2002 | 9 |
0.3%
|
|
| 2003 | 13 |
0.5%
|
|
| 2004 | 15 |
0.6%
|
|
| 2005 | 18 |
0.7%
|
|
| 2006 | 22 |
0.8%
|
|
| 2007 | 22 |
0.8%
|
|
| 2008 | 24 |
0.9%
|
|
| 2009 | 33 |
1.2%
|
|
| 2010 | 47 |
1.8%
|
|
| 2011 | 36 |
1.3%
|
|
| 2012 | 74 |
2.8%
|
|
| 2013 | 85 |
3.2%
|
|
| 2014 | 85 |
3.2%
|
|
| 2015 | 95 |
3.6%
|
|
| 2016 | 120 |
4.5%
|
|
| 2017 | 124 |
4.6%
|
|
| 2018 | 33 |
1.2%
|
|
| 9999 | NO RESPONSE | 3 |
0.1%
|
| Sysmiss | 1788 |
66.9%
|