| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 50 |
24.2%
|
| -7 | Does not apply (spontaneous) | 46 |
22.2%
|
| 0 | 8 |
3.9%
|
|
| 4 | 1 |
0.5%
|
|
| 5 | 1 |
0.5%
|
|
| 10 | 2 |
1%
|
|
| 15 | 1 |
0.5%
|
|
| 20 | 2 |
1%
|
|
| 23 | 1 |
0.5%
|
|
| 30 | 1 |
0.5%
|
|
| 40 | 2 |
1%
|
|
| 50 | 6 |
2.9%
|
|
| 55 | 1 |
0.5%
|
|
| 60 | 3 |
1.4%
|
|
| 70 | 3 |
1.4%
|
|
| 80 | 2 |
1%
|
|
| 90 | 3 |
1.4%
|
|
| 95 | 1 |
0.5%
|
|
| 100 | 73 |
35.3%
|
|
| Sysmiss | 153 |