| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
1.7%
|
| 0 | 69 |
24.1%
|
|
| 1 | 40 |
14%
|
|
| 2 | 58 |
20.3%
|
|
| 3 | 33 |
11.5%
|
|
| 4 | 8 |
2.8%
|
|
| 5 | 24 |
8.4%
|
|
| 6 | 9 |
3.1%
|
|
| 7 | 3 |
1%
|
|
| 8 | 2 |
0.7%
|
|
| 10 | 7 |
2.4%
|
|
| 12 | 3 |
1%
|
|
| 13 | 2 |
0.7%
|
|
| 15 | 2 |
0.7%
|
|
| 17 | 1 |
0.3%
|
|
| 19 | 1 |
0.3%
|
|
| 20 | 6 |
2.1%
|
|
| 24 | 1 |
0.3%
|
|
| 25 | 1 |
0.3%
|
|
| 27 | 1 |
0.3%
|
|
| 30 | 1 |
0.3%
|
|
| 35 | 1 |
0.3%
|
|
| 40 | 2 |
0.7%
|
|
| 42 | 1 |
0.3%
|
|
| 43 | 1 |
0.3%
|
|
| 45 | 1 |
0.3%
|
|
| 50 | 2 |
0.7%
|
|
| 60 | 1 |
0.3%
|
|
| Sysmiss | 225 |