| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 34 |
3.2%
|
| -7 | Does not apply (spontaneous) | 499 |
47%
|
| 0 | 50 |
4.7%
|
|
| 3 | 1 |
0.1%
|
|
| 8 | 1 |
0.1%
|
|
| 10 | 5 |
0.5%
|
|
| 20 | 3 |
0.3%
|
|
| 25 | 17 |
1.6%
|
|
| 30 | 17 |
1.6%
|
|
| 40 | 27 |
2.5%
|
|
| 48 | 1 |
0.1%
|
|
| 50 | 53 |
5%
|
|
| 60 | 16 |
1.5%
|
|
| 65 | 5 |
0.5%
|
|
| 70 | 33 |
3.1%
|
|
| 72 | 1 |
0.1%
|
|
| 75 | 41 |
3.9%
|
|
| 80 | 16 |
1.5%
|
|
| 85 | 3 |
0.3%
|
|
| 90 | 13 |
1.2%
|
|
| 95 | 5 |
0.5%
|
|
| 100 | 221 |
20.8%
|
|
| Sysmiss | 1007 |