| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 1 |
2%
|
| -8 | dont know | 1 |
2%
|
| -7 | na | 0 |
0%
|
| 1 | yes | 5 |
10.2%
|
| 2 | no | 42 |
85.7%
|
| Sysmiss | 150 |