| Value | Category | Cases | |
|---|---|---|---|
| 1999 | 1 |
0%
|
|
| 2000 | 13 |
0.6%
|
|
| 2001 | 10 |
0.4%
|
|
| 2002 | 14 |
0.6%
|
|
| 2003 | 24 |
1%
|
|
| 2004 | 61 |
2.6%
|
|
| 2005 | 63 |
2.7%
|
|
| 2006 | 84 |
3.6%
|
|
| 2007 | 143 |
6.1%
|
|
| 2008 | 168 |
7.1%
|
|
| 2009 | 242 |
10.3%
|
|
| 2010 | 280 |
11.9%
|
|
| 2011 | 289 |
12.3%
|
|
| 2012 | 372 |
15.8%
|
|
| 2013 | 477 |
20.3%
|
|
| 2014 | 109 |
4.6%
|
|
| Sysmiss | 3425 |