| Value | Category |
|---|---|
| 1 | I didn't know the date of enrolment |
| 2 | I left the sub-location before enrolment |
| 3 | Enrolment was postponed |
| 4 | Didn't meet the criteria |
| 5 | Met criteria initially but were rejected during verification |
| 6 | No national ID card |
| 7 | No record of registration |
| 8 | I thought registration led to automatic enrolment |
| 99 | N/A |
| Sysmiss |