| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 4 |
0.2%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 1 | yes | 1296 |
70.2%
|
| 2 | no | 545 |
29.5%
|
| Sysmiss | 181 |