| Value |
Category |
| 1 |
Unable to pay fees |
| 2 |
Necessity to work |
| 3 |
Illness |
| 4 |
Suspension |
| 5 |
Travel |
| 6 |
Pregnancy |
| 9 |
Other |
| 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.