| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 29 |
14.7%
|
| 0 | 3 |
1.5%
|
|
| 1 | 2 |
1%
|
|
| 2 | 2 |
1%
|
|
| 3 | 1 |
0.5%
|
|
| 10 | 4 |
2%
|
|
| 12 | 1 |
0.5%
|
|
| 15 | 1 |
0.5%
|
|
| 19 | 1 |
0.5%
|
|
| 25 | 1 |
0.5%
|
|
| 28 | 1 |
0.5%
|
|
| 30 | 5 |
2.5%
|
|
| 35 | 1 |
0.5%
|
|
| 40 | 6 |
3%
|
|
| 45 | 1 |
0.5%
|
|
| 50 | 13 |
6.6%
|
|
| 60 | 14 |
7.1%
|
|
| 65 | 2 |
1%
|
|
| 70 | 8 |
4.1%
|
|
| 75 | 2 |
1%
|
|
| 80 | 14 |
7.1%
|
|
| 85 | 1 |
0.5%
|
|
| 90 | 11 |
5.6%
|
|
| 95 | 4 |
2%
|
|
| 98 | 1 |
0.5%
|
|
| 100 | 68 |
34.5%
|
|
| Sysmiss | 110 |