| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 97 |
58.1%
|
|
| 1 | 8 |
4.8%
|
|
| 2 | 15 |
9%
|
|
| 3 | 4 |
2.4%
|
|
| 4 | 3 |
1.8%
|
|
| 5 | 4 |
2.4%
|
|
| 6 | 4 |
2.4%
|
|
| 7 | 3 |
1.8%
|
|
| 10 | 6 |
3.6%
|
|
| 12 | 1 |
0.6%
|
|
| 15 | 3 |
1.8%
|
|
| 20 | 8 |
4.8%
|
|
| 25 | 1 |
0.6%
|
|
| 30 | 1 |
0.6%
|
|
| 42 | 1 |
0.6%
|
|
| 60 | 1 |
0.6%
|
|
| 80 | 1 |
0.6%
|
|
| 97 | 1 |
0.6%
|
|
| 180 | 1 |
0.6%
|
|
| 300 | 2 |
1.2%
|
|
| 380 | 1 |
0.6%
|
|
| 450 | 1 |
0.6%
|
|
| Sysmiss | 638 |