| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 7 |
0.4%
|
|
| 2001 | 15 |
0.8%
|
|
| 2002 | 30 |
1.6%
|
|
| 2003 | 36 |
1.9%
|
|
| 2004 | 56 |
2.9%
|
|
| 2005 | 95 |
5%
|
|
| 2006 | 123 |
6.5%
|
|
| 2007 | 170 |
8.9%
|
|
| 2008 | 168 |
8.8%
|
|
| 2009 | 185 |
9.7%
|
|
| 2010 | 211 |
11.1%
|
|
| 2011 | 207 |
10.9%
|
|
| 2012 | 171 |
9%
|
|
| 2013 | 160 |
8.4%
|
|
| 2014 | 180 |
9.4%
|
|
| 2015 | 91 |
4.8%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 4576 |