| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
8%
|
| 0 | 31 |
31%
|
|
| 1 | 7 |
7%
|
|
| 2 | 14 |
14%
|
|
| 3 | 3 |
3%
|
|
| 4 | 5 |
5%
|
|
| 5 | 2 |
2%
|
|
| 6 | 1 |
1%
|
|
| 7 | 2 |
2%
|
|
| 8 | 1 |
1%
|
|
| 9 | 3 |
3%
|
|
| 10 | 3 |
3%
|
|
| 11 | 2 |
2%
|
|
| 12 | 2 |
2%
|
|
| 13 | 1 |
1%
|
|
| 16 | 1 |
1%
|
|
| 18 | 1 |
1%
|
|
| 20 | 2 |
2%
|
|
| 25 | 1 |
1%
|
|
| 30 | 2 |
2%
|
|
| 40 | 1 |
1%
|
|
| 47 | 1 |
1%
|
|
| 50 | 1 |
1%
|
|
| 62 | 1 |
1%
|
|
| 85 | 1 |
1%
|
|
| 112 | 1 |
1%
|
|
| 125 | 1 |
1%
|
|
| 160 | 1 |
1%
|
|
| Sysmiss | 252 |