| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 6 |
4.5%
|
| 3 | 1 |
0.7%
|
|
| 5 | 2 |
1.5%
|
|
| 7 | 1 |
0.7%
|
|
| 10 | 11 |
8.2%
|
|
| 12 | 1 |
0.7%
|
|
| 14 | 1 |
0.7%
|
|
| 15 | 7 |
5.2%
|
|
| 17 | 1 |
0.7%
|
|
| 20 | 23 |
17.2%
|
|
| 25 | 1 |
0.7%
|
|
| 30 | 18 |
13.4%
|
|
| 35 | 4 |
3%
|
|
| 40 | 7 |
5.2%
|
|
| 45 | 2 |
1.5%
|
|
| 50 | 17 |
12.7%
|
|
| 60 | 3 |
2.2%
|
|
| 65 | 1 |
0.7%
|
|
| 70 | 2 |
1.5%
|
|
| 80 | 5 |
3.7%
|
|
| 85 | 1 |
0.7%
|
|
| 90 | 2 |
1.5%
|
|
| 100 | 17 |
12.7%
|
|
| Sysmiss | 225 |