| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
6.7%
|
| 0 | 5 |
3.7%
|
|
| 1 | 1 |
0.7%
|
|
| 3 | 1 |
0.7%
|
|
| 10 | 1 |
0.7%
|
|
| 15 | 1 |
0.7%
|
|
| 17 | 1 |
0.7%
|
|
| 20 | 4 |
3%
|
|
| 30 | 2 |
1.5%
|
|
| 40 | 2 |
1.5%
|
|
| 50 | 8 |
5.9%
|
|
| 60 | 3 |
2.2%
|
|
| 70 | 7 |
5.2%
|
|
| 75 | 3 |
2.2%
|
|
| 80 | 13 |
9.6%
|
|
| 85 | 1 |
0.7%
|
|
| 90 | 2 |
1.5%
|
|
| 93 | 1 |
0.7%
|
|
| 95 | 5 |
3.7%
|
|
| 97 | 1 |
0.7%
|
|
| 98 | 2 |
1.5%
|
|
| 99 | 3 |
2.2%
|
|
| 100 | 59 |
43.7%
|
|
| Sysmiss | 10 |