| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 9 |
3.3%
|
| 5 | 2 |
0.7%
|
|
| 7 | 2 |
0.7%
|
|
| 8 | 1 |
0.4%
|
|
| 10 | 17 |
6.3%
|
|
| 12 | 1 |
0.4%
|
|
| 15 | 24 |
8.8%
|
|
| 16 | 2 |
0.7%
|
|
| 17 | 1 |
0.4%
|
|
| 18 | 5 |
1.8%
|
|
| 20 | 39 |
14.3%
|
|
| 21 | 1 |
0.4%
|
|
| 25 | 12 |
4.4%
|
|
| 28 | 1 |
0.4%
|
|
| 30 | 38 |
14%
|
|
| 35 | 7 |
2.6%
|
|
| 40 | 28 |
10.3%
|
|
| 45 | 3 |
1.1%
|
|
| 50 | 32 |
11.8%
|
|
| 55 | 1 |
0.4%
|
|
| 60 | 12 |
4.4%
|
|
| 65 | 1 |
0.4%
|
|
| 70 | 8 |
2.9%
|
|
| 75 | 1 |
0.4%
|
|
| 80 | 11 |
4%
|
|
| 90 | 8 |
2.9%
|
|
| 95 | 3 |
1.1%
|
|
| 100 | 2 |
0.7%
|
|
| Sysmiss | 328 |