| Value |
Category |
| 1 |
only new |
| 2 |
only rad |
| 3 |
only tv |
| 4 |
two type |
| 5 |
all thre |
| 8 |
don't kn |
| 9 |
refusal |
| 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.