| Value | Category | Cases | |
|---|---|---|---|
| 3 | 9 |
32.1%
|
|
| 4 | 2 |
7.1%
|
|
| 6 | 4 |
14.3%
|
|
| 7 | 1 |
3.6%
|
|
| 10 | 1 |
3.6%
|
|
| 12 | 3 |
10.7%
|
|
| 18 | 1 |
3.6%
|
|
| 20 | 1 |
3.6%
|
|
| 24 | 1 |
3.6%
|
|
| 100 | 1 |
3.6%
|
|
| 998 | Don't know | 4 |
14.3%
|
| Sysmiss | 1403 |