| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 19 |
3.6%
|
| 1 | 45 |
8.5%
|
|
| 2 | 86 |
16.2%
|
|
| 3 | 69 |
13%
|
|
| 4 | 113 |
21.3%
|
|
| 5 | 36 |
6.8%
|
|
| 6 | 36 |
6.8%
|
|
| 7 | 5 |
0.9%
|
|
| 8 | 52 |
9.8%
|
|
| 10 | 6 |
1.1%
|
|
| 12 | 29 |
5.5%
|
|
| 15 | 5 |
0.9%
|
|
| 16 | 8 |
1.5%
|
|
| 18 | 2 |
0.4%
|
|
| 20 | 3 |
0.6%
|
|
| 24 | 8 |
1.5%
|
|
| 25 | 1 |
0.2%
|
|
| 26 | 2 |
0.4%
|
|
| 50 | 1 |
0.2%
|
|
| 52 | 4 |
0.8%
|
|
| Sysmiss | 70 |