| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 104 |
1%
|
|
| 2001 | 262 |
2.5%
|
|
| 2002 | 299 |
2.9%
|
|
| 2003 | 373 |
3.6%
|
|
| 2004 | 404 |
3.9%
|
|
| 2005 | 491 |
4.7%
|
|
| 2006 | 480 |
4.6%
|
|
| 2007 | 506 |
4.9%
|
|
| 2008 | 546 |
5.3%
|
|
| 2009 | 570 |
5.5%
|
|
| 2010 | 660 |
6.4%
|
|
| 2011 | 713 |
6.9%
|
|
| 2012 | 754 |
7.3%
|
|
| 2013 | 821 |
7.9%
|
|
| 2014 | 980 |
9.5%
|
|
| 2015 | 242 |
2.3%
|
|
| 3333 | Missing | 2 |
0%
|
| 5555 | Not applicable | 4 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 2138 |
20.7%
|
| Sysmiss | 3569 |