| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 4 |
12.1%
|
|
| 5 | 1 |
3%
|
|
| 20 | 1 |
3%
|
|
| 40 | 1 |
3%
|
|
| 45 | 1 |
3%
|
|
| 50 | 1 |
3%
|
|
| 60 | 1 |
3%
|
|
| 75 | 3 |
9.1%
|
|
| 80 | 1 |
3%
|
|
| 90 | 2 |
6.1%
|
|
| 100 | 17 |
51.5%
|
|
| Sysmiss | 1267 |