| Value |
Category |
| 1 |
On a seasonal basis |
| 2 |
On a monthly basis |
| 3 |
Weekly basis |
| 4 |
Daily bases |
| 5 |
Hourly bases |
| 6 |
twice a month |
| 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.