| Value | Category | Cases | |
|---|---|---|---|
| 2002 | 1 |
0.7%
|
|
| 2003 | 1 |
0.7%
|
|
| 2005 | 2 |
1.5%
|
|
| 2007 | 3 |
2.2%
|
|
| 2008 | 8 |
5.9%
|
|
| 2009 | 3 |
2.2%
|
|
| 2010 | 4 |
3%
|
|
| 2011 | 3 |
2.2%
|
|
| 2012 | 8 |
5.9%
|
|
| 2013 | 12 |
8.9%
|
|
| 2014 | 14 |
10.4%
|
|
| 2015 | 15 |
11.1%
|
|
| 2016 | 32 |
23.7%
|
|
| 2017 | 17 |
12.6%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 12 |
8.9%
|
| Sysmiss | 864 |