| Value |
Category |
| -9 |
Missing Data |
| 1 |
1 month |
| 2 |
Betw 1 & 3 months |
| 3 |
3-6 months |
| 4 |
Betw 6 & 12 months |
| 5 |
12 months or more |
| 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.