| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | 4 |
2.3%
|
|
| 2 | 6 |
3.4%
|
|
| 3 | 2 |
1.1%
|
|
| 4 | 12 |
6.9%
|
|
| 5 | 5 |
2.9%
|
|
| 6 | 33 |
18.9%
|
|
| 7 | 14 |
8%
|
|
| 8 | 55 |
31.4%
|
|
| 9 | 16 |
9.1%
|
|
| 10 | 9 |
5.1%
|
|
| 11 | 3 |
1.7%
|
|
| 12 | 8 |
4.6%
|
|
| 13 | 1 |
0.6%
|
|
| 14 | 3 |
1.7%
|
|
| 15 | 3 |
1.7%
|
|
| 45 | 1 |
0.6%
|
|
| Sysmiss | 425 |