| Value |
Category |
| 1 |
Very common/Almost all |
| 2 |
Fairly common/Most |
| 3 |
Fairly rare/A few/some |
| 4 |
Very rare/Almost none |
| 9 |
Don't know |
| 98 |
Refused |
| 99 |
Missing data |
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.