Value |
Category |
-1 |
missing data |
0 |
never |
1 |
once or twice |
2 |
a few times |
3 |
often |
7 |
no experience |
9 |
don't know |
998 |
refused |
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.