| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 10 |
12.2%
|
| 5 | 1 |
1.2%
|
|
| 7 | 1 |
1.2%
|
|
| 10 | 3 |
3.7%
|
|
| 13 | 1 |
1.2%
|
|
| 14 | 1 |
1.2%
|
|
| 15 | 2 |
2.4%
|
|
| 20 | 7 |
8.5%
|
|
| 21 | 1 |
1.2%
|
|
| 25 | 1 |
1.2%
|
|
| 26 | 1 |
1.2%
|
|
| 30 | 23 |
28%
|
|
| 35 | 2 |
2.4%
|
|
| 40 | 9 |
11%
|
|
| 45 | 1 |
1.2%
|
|
| 50 | 5 |
6.1%
|
|
| 60 | 3 |
3.7%
|
|
| 70 | 2 |
2.4%
|
|
| 80 | 2 |
2.4%
|
|
| 90 | 1 |
1.2%
|
|
| 95 | 1 |
1.2%
|
|
| 100 | 4 |
4.9%
|
|
| Sysmiss | 277 |