| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 1 |
2.2%
|
|
| 2012 | 14 |
30.4%
|
|
| 2013 | 14 |
30.4%
|
|
| 2014 | 10 |
21.7%
|
|
| 2015 | 2 |
4.3%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not Applicable | 3 |
6.5%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't Know | 2 |
4.3%
|
| Sysmiss | 11849 |