| Value |
Category |
| -9 |
Missing |
| -8 |
Don't know |
| -7 |
Notappl |
| 1 |
Day |
| 2 |
Week |
| 3 |
Fortnight |
| 4 |
Month |
| 5 |
Quarter |
| 6 |
Half year |
| 7 |
Year |
| 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.