| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 11 |
4.7%
|
| 0 | 137 |
58.8%
|
|
| 1 | 6 |
2.6%
|
|
| 2 | 13 |
5.6%
|
|
| 3 | 10 |
4.3%
|
|
| 4 | 7 |
3%
|
|
| 5 | 6 |
2.6%
|
|
| 6 | 1 |
0.4%
|
|
| 7 | 2 |
0.9%
|
|
| 8 | 1 |
0.4%
|
|
| 9 | 1 |
0.4%
|
|
| 10 | 13 |
5.6%
|
|
| 12 | 3 |
1.3%
|
|
| 14 | 1 |
0.4%
|
|
| 15 | 5 |
2.1%
|
|
| 20 | 3 |
1.3%
|
|
| 22 | 1 |
0.4%
|
|
| 25 | 1 |
0.4%
|
|
| 27 | 2 |
0.9%
|
|
| 30 | 2 |
0.9%
|
|
| 33 | 1 |
0.4%
|
|
| 50 | 2 |
0.9%
|
|
| 54 | 1 |
0.4%
|
|
| 60 | 1 |
0.4%
|
|
| 67 | 1 |
0.4%
|
|
| 191 | 1 |
0.4%
|
|
| Sysmiss | 468 |