| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 13 |
4.8%
|
| 0 | 1 |
0.4%
|
|
| 2 | 1 |
0.4%
|
|
| 8 | 2 |
0.7%
|
|
| 9 | 1 |
0.4%
|
|
| 12 | 1 |
0.4%
|
|
| 15 | 1 |
0.4%
|
|
| 20 | 1 |
0.4%
|
|
| 30 | 6 |
2.2%
|
|
| 35 | 1 |
0.4%
|
|
| 40 | 3 |
1.1%
|
|
| 50 | 6 |
2.2%
|
|
| 56 | 1 |
0.4%
|
|
| 60 | 7 |
2.6%
|
|
| 67 | 1 |
0.4%
|
|
| 70 | 12 |
4.5%
|
|
| 75 | 2 |
0.7%
|
|
| 80 | 15 |
5.6%
|
|
| 85 | 2 |
0.7%
|
|
| 88 | 1 |
0.4%
|
|
| 90 | 22 |
8.2%
|
|
| 92 | 1 |
0.4%
|
|
| 95 | 6 |
2.2%
|
|
| 98 | 4 |
1.5%
|
|
| 99 | 2 |
0.7%
|
|
| 100 | 156 |
58%
|
|
| Sysmiss | 76 |