| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 54 |
38.6%
|
|
| 1 | 27 |
19.3%
|
|
| 2 | 29 |
20.7%
|
|
| 3 | 6 |
4.3%
|
|
| 4 | 5 |
3.6%
|
|
| 5 | 4 |
2.9%
|
|
| 6 | 2 |
1.4%
|
|
| 8 | 1 |
0.7%
|
|
| 9 | 1 |
0.7%
|
|
| 10 | 1 |
0.7%
|
|
| 12 | 1 |
0.7%
|
|
| 13 | 2 |
1.4%
|
|
| 15 | 3 |
2.1%
|
|
| 17 | 1 |
0.7%
|
|
| 19 | 1 |
0.7%
|
|
| 21 | 1 |
0.7%
|
|
| 35 | 1 |
0.7%
|
|
| Sysmiss | 820 |