| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 7 |
4%
|
| 0 | 54 |
31%
|
|
| 1 | 35 |
20.1%
|
|
| 2 | 23 |
13.2%
|
|
| 3 | 14 |
8%
|
|
| 4 | 6 |
3.4%
|
|
| 5 | 11 |
6.3%
|
|
| 7 | 2 |
1.1%
|
|
| 8 | 1 |
0.6%
|
|
| 10 | 8 |
4.6%
|
|
| 15 | 2 |
1.1%
|
|
| 18 | 1 |
0.6%
|
|
| 20 | 2 |
1.1%
|
|
| 23 | 1 |
0.6%
|
|
| 25 | 1 |
0.6%
|
|
| 30 | 1 |
0.6%
|
|
| 45 | 1 |
0.6%
|
|
| 50 | 1 |
0.6%
|
|
| 80 | 2 |
1.1%
|
|
| 100 | 1 |
0.6%
|
|
| Sysmiss | 188 |