| Value | Category | Cases | |
|---|---|---|---|
| 2001 | 1 |
0%
|
|
| 2002 | 98 |
0.9%
|
|
| 2003 | 289 |
2.7%
|
|
| 2004 | 332 |
3.1%
|
|
| 2005 | 425 |
3.9%
|
|
| 2006 | 471 |
4.4%
|
|
| 2007 | 487 |
4.5%
|
|
| 2008 | 544 |
5%
|
|
| 2009 | 559 |
5.2%
|
|
| 2010 | 613 |
5.7%
|
|
| 2011 | 594 |
5.5%
|
|
| 2012 | 627 |
5.8%
|
|
| 2013 | 698 |
6.5%
|
|
| 2014 | 736 |
6.8%
|
|
| 2015 | 762 |
7%
|
|
| 2016 | 876 |
8.1%
|
|
| 2017 | 384 |
3.5%
|
|
| 3333 | Missing | 20 |
0.2%
|
| 5555 | Not applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 2303 |
21.3%
|
| Sysmiss | 4174 |