| Value | Category | Cases | |
|---|---|---|---|
| -9 | do not know | 0 |
0%
|
| 0 | 38 |
84.4%
|
|
| 30 | 1 |
2.2%
|
|
| 50 | 3 |
6.7%
|
|
| 60 | 2 |
4.4%
|
|
| 90 | 1 |
2.2%
|
|
| Sysmiss | 103 |