| Value | Category | Cases | |
|---|---|---|---|
| 0 | Neither | 71 |
5.5%
|
| 1 | 6 |
0.5%
|
|
| 2 | 89 |
6.9%
|
|
| 3 | 290 |
22.5%
|
|
| 4 | 113 |
8.8%
|
|
| 5 | 53 |
4.1%
|
|
| 6 | 45 |
3.5%
|
|
| 7 | 25 |
1.9%
|
|
| 8 | 15 |
1.2%
|
|
| 9 | 5 |
0.4%
|
|
| 10 | 4 |
0.3%
|
|
| 11 | 1 |
0.1%
|
|
| 16 | 1 |
0.1%
|
|
| 26 | 2 |
0.2%
|
|
| 28 | Not in roster card | 44 |
3.4%
|
| 29 | Don't know | 522 |
40.5%
|
| 30 | 3 |
0.2%
|
|
| Sysmiss | 192 |