| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 277 |
63.2%
|
| 0 | 27 |
6.2%
|
|
| 1 | 1 |
0.2%
|
|
| 2 | 1 |
0.2%
|
|
| 4 | 1 |
0.2%
|
|
| 5 | 5 |
1.1%
|
|
| 10 | 5 |
1.1%
|
|
| 15 | 3 |
0.7%
|
|
| 20 | 13 |
3%
|
|
| 25 | 3 |
0.7%
|
|
| 30 | 17 |
3.9%
|
|
| 35 | 6 |
1.4%
|
|
| 40 | 9 |
2.1%
|
|
| 45 | 2 |
0.5%
|
|
| 50 | 15 |
3.4%
|
|
| 55 | 2 |
0.5%
|
|
| 58 | 1 |
0.2%
|
|
| 60 | 11 |
2.5%
|
|
| 65 | 6 |
1.4%
|
|
| 70 | 16 |
3.7%
|
|
| 75 | 1 |
0.2%
|
|
| 80 | 6 |
1.4%
|
|
| 82 | 1 |
0.2%
|
|
| 84 | 1 |
0.2%
|
|
| 85 | 2 |
0.5%
|
|
| 90 | 1 |
0.2%
|
|
| 95 | 1 |
0.2%
|
|
| 99 | 1 |
0.2%
|
|
| 100 | 3 |
0.7%
|
|
| Sysmiss | 590 |