| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
1.8%
|
| 2 | 1 |
0.6%
|
|
| 3 | 1 |
0.6%
|
|
| 4 | 2 |
1.2%
|
|
| 5 | 2 |
1.2%
|
|
| 10 | 4 |
2.3%
|
|
| 15 | 5 |
2.9%
|
|
| 17 | 1 |
0.6%
|
|
| 20 | 7 |
4.1%
|
|
| 22 | 1 |
0.6%
|
|
| 25 | 8 |
4.7%
|
|
| 30 | 10 |
5.8%
|
|
| 33 | 1 |
0.6%
|
|
| 35 | 6 |
3.5%
|
|
| 40 | 15 |
8.8%
|
|
| 45 | 5 |
2.9%
|
|
| 48 | 1 |
0.6%
|
|
| 50 | 18 |
10.5%
|
|
| 58 | 1 |
0.6%
|
|
| 60 | 11 |
6.4%
|
|
| 65 | 2 |
1.2%
|
|
| 67 | 1 |
0.6%
|
|
| 70 | 9 |
5.3%
|
|
| 75 | 9 |
5.3%
|
|
| 80 | 7 |
4.1%
|
|
| 83 | 1 |
0.6%
|
|
| 84 | 1 |
0.6%
|
|
| 85 | 4 |
2.3%
|
|
| 90 | 11 |
6.4%
|
|
| 100 | 23 |
13.5%
|
|
| Sysmiss | 174 |