| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 12 |
7.1%
|
| 1 | 1 |
0.6%
|
|
| 2 | 4 |
2.4%
|
|
| 3 | 4 |
2.4%
|
|
| 5 | 12 |
7.1%
|
|
| 6 | 2 |
1.2%
|
|
| 7 | 18 |
10.7%
|
|
| 8 | 2 |
1.2%
|
|
| 10 | 12 |
7.1%
|
|
| 14 | 1 |
0.6%
|
|
| 15 | 24 |
14.2%
|
|
| 18 | 2 |
1.2%
|
|
| 20 | 11 |
6.5%
|
|
| 21 | 2 |
1.2%
|
|
| 23 | 1 |
0.6%
|
|
| 25 | 2 |
1.2%
|
|
| 30 | 33 |
19.5%
|
|
| 40 | 4 |
2.4%
|
|
| 45 | 3 |
1.8%
|
|
| 60 | 13 |
7.7%
|
|
| 70 | 1 |
0.6%
|
|
| 75 | 1 |
0.6%
|
|
| 90 | 3 |
1.8%
|
|
| 330 | 1 |
0.6%
|
|
| Sysmiss | 838 |