Value |
Category |
01 |
Month, year, and day reported |
02 |
Month and year reported |
03 |
Month and age reported, year imputed |
04 |
Year and age reported, month imputed |
05 |
Year reported, age and month imputed |
06 |
Age reported, year and month imputed |
07 |
Month reported, age and year imputed |
08 |
Year and age reported, year ignored |
09 |
All values imputed |
90 |
No data from individual questionnaire |
99 |
NIU (not in universe) |
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.