| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 75 |
14.4%
|
| 0 | 31 |
6%
|
|
| 1 | 55 |
10.6%
|
|
| 2 | 57 |
10.9%
|
|
| 3 | 24 |
4.6%
|
|
| 4 | 124 |
23.8%
|
|
| 5 | 4 |
0.8%
|
|
| 6 | 16 |
3.1%
|
|
| 7 | 1 |
0.2%
|
|
| 8 | 64 |
12.3%
|
|
| 9 | 1 |
0.2%
|
|
| 10 | 2 |
0.4%
|
|
| 12 | 40 |
7.7%
|
|
| 15 | 2 |
0.4%
|
|
| 16 | 5 |
1%
|
|
| 17 | 1 |
0.2%
|
|
| 18 | 2 |
0.4%
|
|
| 20 | 1 |
0.2%
|
|
| 22 | 1 |
0.2%
|
|
| 24 | 10 |
1.9%
|
|
| 25 | 2 |
0.4%
|
|
| 26 | 1 |
0.2%
|
|
| 34 | 1 |
0.2%
|
|
| 36 | 1 |
0.2%
|
|
| Sysmiss | 251 |