| Value |
Category |
| 1 |
Month, year, and day complete |
| 2 |
Month and year complete |
| 3 |
Season and year complete |
| 4 |
Year, season, and age - month imputed |
| 5 |
Year and age - month imputed |
| 6 |
Month and age - year imputed |
| 7 |
Year- month imputed, age calculated |
| 8 |
Age - year calculated, month imputed |
| 9 |
Year and age - year ignored |
| 10 |
Year - age, month imputed |
| 11 |
Month - date placed |
| 12 |
Age - year, month imputed |
| 13 |
None - date placed |
| 14 |
Month - age, year imputed |
| 15 |
Age - year ignored |
| 16 |
Year/Age (or dead) |
| 17 |
Age/Year |
| 18 |
None - all imputed |
| 19 |
Inconsistant |
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.