| Value | Category | Cases | |
|---|---|---|---|
| -2 | Don't know | 4 |
0.1%
|
| -1 | Refused | 29 |
1%
|
| 1 | Yes, paid | 123 |
4.5%
|
| 2 | Yes, unpaid | 249 |
9%
|
| 3 | No | 2357 |
85.3%
|
| Sysmiss | 237 |