| Value | Category | Cases | |
|---|---|---|---|
| 2001 | 1 |
0%
|
|
| 2002 | 1 |
0%
|
|
| 2003 | 2 |
0%
|
|
| 2004 | 8 |
0.1%
|
|
| 2005 | 47 |
0.6%
|
|
| 2006 | 298 |
4%
|
|
| 2007 | 476 |
6.4%
|
|
| 2008 | 508 |
6.8%
|
|
| 2009 | 586 |
7.9%
|
|
| 2010 | 605 |
8.1%
|
|
| 2011 | 641 |
8.6%
|
|
| 2012 | 733 |
9.8%
|
|
| 2013 | 888 |
11.9%
|
|
| 2014 | 1191 |
16%
|
|
| 2015 | 599 |
8%
|
|
| 3333 | Missing | 42 |
0.6%
|
| 5555 | Not applicable | 6 |
0.1%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 817 |
11%
|
| Sysmiss | 6522 |