| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 5 |
8.1%
|
| 0 | 3 |
4.8%
|
|
| 5 | 3 |
4.8%
|
|
| 10 | 2 |
3.2%
|
|
| 15 | 2 |
3.2%
|
|
| 20 | 3 |
4.8%
|
|
| 25 | 2 |
3.2%
|
|
| 30 | 3 |
4.8%
|
|
| 35 | 3 |
4.8%
|
|
| 40 | 6 |
9.7%
|
|
| 45 | 2 |
3.2%
|
|
| 50 | 8 |
12.9%
|
|
| 55 | 2 |
3.2%
|
|
| 60 | 4 |
6.5%
|
|
| 65 | 2 |
3.2%
|
|
| 70 | 7 |
11.3%
|
|
| 80 | 2 |
3.2%
|
|
| 90 | 1 |
1.6%
|
|
| 100 | 2 |
3.2%
|
|
| Sysmiss | 88 |