| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
1.5%
|
| 0 | 34 |
12.7%
|
|
| 1 | 22 |
8.2%
|
|
| 2 | 41 |
15.3%
|
|
| 3 | 22 |
8.2%
|
|
| 4 | 17 |
6.3%
|
|
| 5 | 21 |
7.8%
|
|
| 6 | 8 |
3%
|
|
| 7 | 9 |
3.4%
|
|
| 8 | 4 |
1.5%
|
|
| 9 | 5 |
1.9%
|
|
| 10 | 28 |
10.4%
|
|
| 11 | 1 |
0.4%
|
|
| 12 | 1 |
0.4%
|
|
| 13 | 1 |
0.4%
|
|
| 15 | 8 |
3%
|
|
| 16 | 1 |
0.4%
|
|
| 17 | 1 |
0.4%
|
|
| 18 | 1 |
0.4%
|
|
| 19 | 1 |
0.4%
|
|
| 20 | 6 |
2.2%
|
|
| 25 | 4 |
1.5%
|
|
| 30 | 9 |
3.4%
|
|
| 40 | 8 |
3%
|
|
| 45 | 1 |
0.4%
|
|
| 50 | 2 |
0.7%
|
|
| 60 | 2 |
0.7%
|
|
| 70 | 1 |
0.4%
|
|
| 80 | 2 |
0.7%
|
|
| 90 | 1 |
0.4%
|
|
| 100 | 1 |
0.4%
|
|
| 400 | 1 |
0.4%
|
|
| Sysmiss | 264 |