| Value | Category | Cases | |
|---|---|---|---|
| -2 | Don't know | 1 |
1.1%
|
| 4 | 1 |
1.1%
|
|
| 7 | 1 |
1.1%
|
|
| 8 | 1 |
1.1%
|
|
| 10 | 2 |
2.2%
|
|
| 11 | 1 |
1.1%
|
|
| 13 | 4 |
4.4%
|
|
| 15 | 59 |
64.8%
|
|
| 16 | 4 |
4.4%
|
|
| 18 | 3 |
3.3%
|
|
| 19 | 1 |
1.1%
|
|
| 20 | 3 |
3.3%
|
|
| 22 | 3 |
3.3%
|
|
| 25 | 3 |
3.3%
|
|
| 28 | 1 |
1.1%
|
|
| 32 | 2 |
2.2%
|
|
| 40 | 1 |
1.1%
|
|
| Sysmiss | 109 |