| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 10 |
0.3%
|
|
| 2001 | 37 |
1.2%
|
|
| 2002 | 101 |
3.2%
|
|
| 2003 | 197 |
6.3%
|
|
| 2004 | 255 |
8.2%
|
|
| 2005 | 265 |
8.5%
|
|
| 2006 | 270 |
8.6%
|
|
| 2007 | 249 |
8%
|
|
| 2008 | 268 |
8.6%
|
|
| 2009 | 291 |
9.3%
|
|
| 2010 | 222 |
7.1%
|
|
| 2011 | 247 |
7.9%
|
|
| 2012 | 209 |
6.7%
|
|
| 2013 | 211 |
6.7%
|
|
| 2014 | 188 |
6%
|
|
| 2015 | 106 |
3.4%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 3355 |