| Value | Category | Cases | |
|---|---|---|---|
| 2013 | 2 |
5.1%
|
|
| 2014 | 2 |
5.1%
|
|
| 2015 | 17 |
43.6%
|
|
| 2016 | 12 |
30.8%
|
|
| 2017 | 1 |
2.6%
|
|
| 3333 | Missing | 3 |
7.7%
|
| 5555 | Not Applicable | 1 |
2.6%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't Know | 1 |
2.6%
|
| Sysmiss | 13680 |