| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, paid | 9 |
0.3%
|
| 2 | Yes, unpaid | 40 |
1.5%
|
| 3 | No | 2572 |
98%
|
| 9 | Missing | 3 |
0.1%
|
| Sysmiss | 4562 |