| Value |
Category |
| 1 |
Hour |
| 2 |
Day |
| 3 |
Week |
| 4 |
Fortnight |
| 5 |
Month |
| 6 |
Quarter a year |
| 7 |
Half a year |
| 8 |
Annual |
| 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.