| Value | Category | Cases | |
|---|---|---|---|
| 1994 | 1 |
0.3%
|
|
| 1995 | 1 |
0.3%
|
|
| 1996 | 1 |
0.3%
|
|
| 1997 | 1 |
0.3%
|
|
| 1998 | 3 |
0.8%
|
|
| 1999 | 2 |
0.5%
|
|
| 2000 | 5 |
1.4%
|
|
| 2001 | 1 |
0.3%
|
|
| 2002 | 12 |
3.3%
|
|
| 2003 | 12 |
3.3%
|
|
| 2004 | 12 |
3.3%
|
|
| 2005 | 25 |
6.8%
|
|
| 2006 | 25 |
6.8%
|
|
| 2007 | 22 |
6%
|
|
| 2008 | 37 |
10.1%
|
|
| 2009 | 39 |
10.7%
|
|
| 2010 | 43 |
11.8%
|
|
| 2011 | 36 |
9.9%
|
|
| 2012 | 47 |
12.9%
|
|
| 2013 | 37 |
10.1%
|
|
| 2014 | 3 |
0.8%
|
|
| Sysmiss | 10551 |