| Value | Category | Cases | |
|---|---|---|---|
| 1997 | 1732 |
7.8%
|
|
| 1998 | 20 |
0.1%
|
|
| 1999 | 581 |
2.6%
|
|
| 2000 | 144 |
0.6%
|
|
| 2001 | 132 |
0.6%
|
|
| 2002 | 152 |
0.7%
|
|
| 2003 | 134 |
0.6%
|
|
| 2004 | 895 |
4%
|
|
| 2005 | 1927 |
8.6%
|
|
| 2006 | 1316 |
5.9%
|
|
| 2007 | 2760 |
12.4%
|
|
| 2008 | 2154 |
9.6%
|
|
| 2009 | 1757 |
7.9%
|
|
| 2010 | 3494 |
15.6%
|
|
| 2011 | 625 |
2.8%
|
|
| 2012 | 753 |
3.4%
|
|
| 2013 | 962 |
4.3%
|
|
| 2014 | 890 |
4%
|
|
| 2015 | 1916 |
8.6%
|
|
| Sysmiss | 242448 |