| Value |
Category |
| 1 |
I have never smoked |
| 2 |
I have not stopped smoking |
| 3 |
It was very difficult |
| 4 |
It was rather difficult |
| 5 |
It was rather easy |
| 6 |
It was very easy |
| 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.
