| Value | Category | Cases | |
|---|---|---|---|
| 2013 | 2 |
3.7%
|
|
| 2014 | 2 |
3.7%
|
|
| 2015 | 16 |
29.6%
|
|
| 2016 | 21 |
38.9%
|
|
| 2017 | 10 |
18.5%
|
|
| 3333 | Missing | 2 |
3.7%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't Know | 1 |
1.9%
|
| Sysmiss | 945 |