| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 0 |
0%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 0 | 400 |
18.9%
|
|
| 1 | yes | 1716 |
81.1%
|
| 2 | no | 0 |
0%
|
| Sysmiss | 4 |