| Value |
Category |
| 0 |
pre-primary |
| 1 |
primary |
| 2 |
secondary lower |
| 3 |
secondary upper |
| 4 |
higher |
| 8 |
dk |
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.