| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 2 |
9.1%
|
| -8 | Refused | 0 |
0%
|
| -5 | Not applicable | 0 |
0%
|
| -3 | Missing | 0 |
0%
|
| 1 | More than three quarters | 11 |
50%
|
| 2 | About equal to three quarters | 6 |
27.3%
|
| 3 | Less than three quarters | 3 |
13.6%
|
| Sysmiss | 30088 |