| Value |
Category |
| 0 |
READER |
| 1 |
BOOKLET 1 |
| 2 |
BOOKLET 2 |
| 3 |
BOOKLET 3 |
| 4 |
BOOKLET 4 |
| 5 |
BOOKLET 5 |
| 6 |
BOOKLET 6 |
| 7 |
BOOKLET 7 |
| 8 |
BOOKLET 8 |
| 9 |
BOOKLET 9 |
| 99 |
OMITTED |
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.