| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 17 |
26.2%
|
|
| 1 | 10 |
15.4%
|
|
| 2 | 9 |
13.8%
|
|
| 3 | 5 |
7.7%
|
|
| 4 | 4 |
6.2%
|
|
| 5 | 3 |
4.6%
|
|
| 6 | 2 |
3.1%
|
|
| 7 | 5 |
7.7%
|
|
| 9 | 1 |
1.5%
|
|
| 10 | 2 |
3.1%
|
|
| 11 | 1 |
1.5%
|
|
| 19 | 2 |
3.1%
|
|
| 20 | 1 |
1.5%
|
|
| 35 | 1 |
1.5%
|
|
| 37 | 1 |
1.5%
|
|
| 45 | 1 |
1.5%
|
|
| Sysmiss | 1031 |