| Value | Category | Cases | |
|---|---|---|---|
| 1997 | 297 |
1.1%
|
|
| 1998 | 844 |
3.1%
|
|
| 1999 | 555 |
2.1%
|
|
| 2000 | 993 |
3.7%
|
|
| 2001 | 1725 |
6.4%
|
|
| 2002 | 697 |
2.6%
|
|
| 2003 | 1803 |
6.7%
|
|
| 2004 | 1620 |
6%
|
|
| 2005 | 1265 |
4.7%
|
|
| 2006 | 1165 |
4.3%
|
|
| 2007 | 2805 |
10.4%
|
|
| 2008 | 2368 |
8.8%
|
|
| 2009 | 3009 |
11.1%
|
|
| 2010 | 2411 |
8.9%
|
|
| 2011 | 703 |
2.6%
|
|
| 2012 | 936 |
3.5%
|
|
| 2013 | 675 |
2.5%
|
|
| 2014 | 1073 |
4%
|
|
| 2015 | 1986 |
7.4%
|
|
| 2016 | 70 |
0.3%
|
|
| Sysmiss | 237792 |