| Value |
Category |
| 1 |
Within the last 30 days |
| 2 |
1-2 months ago |
| 3 |
3-5 months ago |
| 4 |
6-12 months ago |
| 8 |
Do not know |
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.