| Value |
Category |
| 1 |
EVERY DAY |
| 2 |
TWO OR THREE TIMES A WEEK |
| 3 |
ONCE A WEEK |
| 4 |
ONCE A MONTH |
| 5 |
EVERY OTHER MONTH |
| 6 |
ONCE OR TWICE A YEAR |
| 7 |
NEVER |
| 99 |
OMITTED |
| 11 |
.A |
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.