| Value | Category | Cases | |
|---|---|---|---|
| 2002 | 2 |
1.5%
|
|
| 2003 | 2 |
1.5%
|
|
| 2005 | 2 |
1.5%
|
|
| 2006 | 2 |
1.5%
|
|
| 2007 | 2 |
1.5%
|
|
| 2008 | 2 |
1.5%
|
|
| 2009 | 1 |
0.7%
|
|
| 2010 | 3 |
2.2%
|
|
| 2011 | 3 |
2.2%
|
|
| 2012 | 6 |
4.4%
|
|
| 2013 | 10 |
7.4%
|
|
| 2014 | 33 |
24.3%
|
|
| 2015 | 51 |
37.5%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 17 |
12.5%
|
| Sysmiss | 13782 |