| Value | Category |
|---|---|
| -88 | no interest charged |
| 1 | Day |
| 2 | Week |
| 3 | Month |
| 4 | Year |
| 5 | Flat rate |
| a | Don't know |
| b | Refused to answer |
| c | Outlier set to missing |
| d | Dropped during anonymization (available on request) |
| e | Skipped in error |
| m | Not available in wave |
| z | Not applicable |