| Value | Category | Cases | |
|---|---|---|---|
| 1992 | 1 |
0%
|
|
| 1993 | 1 |
0%
|
|
| 1996 | 1 |
0%
|
|
| 1997 | 2 |
0%
|
|
| 1998 | 1 |
0%
|
|
| 1999 | 2 |
0%
|
|
| 2000 | 14 |
0.2%
|
|
| 2001 | 3 |
0%
|
|
| 2002 | 17 |
0.2%
|
|
| 2003 | 11 |
0.1%
|
|
| 2004 | 17 |
0.2%
|
|
| 2005 | 60 |
0.8%
|
|
| 2006 | 181 |
2.4%
|
|
| 2007 | 615 |
8.1%
|
|
| 2008 | 1416 |
18.7%
|
|
| 2009 | 1794 |
23.6%
|
|
| 2010 | 1766 |
23.3%
|
|
| 2011 | 1089 |
14.4%
|
|
| 2012 | 595 |
7.8%
|
|
| Sysmiss | 87919 |