| Value |
Category |
| 1 |
|
| 2 |
|
| 3 |
|
| 5 |
|
| 6 |
|
| 7 |
|
| 77 |
not scheduled for but regular |
| 88 |
not scheduled |
| 99 |
don't know |
| 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.