| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
1.5%
|
| 3 | 1 |
0.5%
|
|
| 5 | 1 |
0.5%
|
|
| 10 | 1 |
0.5%
|
|
| 15 | 4 |
2%
|
|
| 20 | 7 |
3.5%
|
|
| 25 | 6 |
3%
|
|
| 30 | 14 |
7%
|
|
| 40 | 9 |
4.5%
|
|
| 45 | 1 |
0.5%
|
|
| 50 | 24 |
12%
|
|
| 60 | 17 |
8.5%
|
|
| 65 | 1 |
0.5%
|
|
| 67 | 1 |
0.5%
|
|
| 70 | 33 |
16.5%
|
|
| 75 | 3 |
1.5%
|
|
| 80 | 25 |
12.5%
|
|
| 85 | 3 |
1.5%
|
|
| 90 | 14 |
7%
|
|
| 95 | 2 |
1%
|
|
| 100 | 30 |
15%
|
|
| Sysmiss | 381 |