| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 28 |
6%
|
| 0 | 1 |
0.2%
|
|
| 15 | 1 |
0.2%
|
|
| 20 | 2 |
0.4%
|
|
| 50 | 7 |
1.5%
|
|
| 60 | 2 |
0.4%
|
|
| 65 | 1 |
0.2%
|
|
| 70 | 3 |
0.6%
|
|
| 75 | 5 |
1.1%
|
|
| 80 | 21 |
4.5%
|
|
| 85 | 11 |
2.3%
|
|
| 90 | 31 |
6.6%
|
|
| 92 | 1 |
0.2%
|
|
| 95 | 20 |
4.3%
|
|
| 96 | 1 |
0.2%
|
|
| 98 | 5 |
1.1%
|
|
| 99 | 2 |
0.4%
|
|
| 100 | 328 |
69.8%
|
|
| Sysmiss | 130 |