| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 1 |
0.4%
|
| 0 | 246 |
86.9%
|
|
| 5 | 1 |
0.4%
|
|
| 10 | 1 |
0.4%
|
|
| 15 | 2 |
0.7%
|
|
| 20 | 3 |
1.1%
|
|
| 30 | 2 |
0.7%
|
|
| 40 | 3 |
1.1%
|
|
| 50 | 2 |
0.7%
|
|
| 60 | 2 |
0.7%
|
|
| 70 | 2 |
0.7%
|
|
| 75 | 1 |
0.4%
|
|
| 80 | 1 |
0.4%
|
|
| 100 | 16 |
5.7%
|
|
| Sysmiss | 77 |