| Value |
Category |
Cases |
|
| 1 |
Rapidly, within days |
178 |
|
| 2 |
Gradually, over months |
313 |
|
| 8 |
Don't know |
42 |
|
| 9 |
|
9 |
|
| Sysmiss |
|
3661 |
|
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.
