| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 35 |
13.5%
|
| 2014 | 68 |
26.3%
|
|
| 2015 | 92 |
35.5%
|
|
| 2016 | 64 |
24.7%
|
|
| 4444 | Marked on card | 0 |
0%
|
| 9998 | DK | 0 |
0%
|