Lung cancer cases in New Mexico counties, 1973-1991.
A data frame with 7,793 rows and 5 variables:
- county
County name (Location ID).
- cases
Number of cases (1 for individual records).
- date
Date of diagnosis (Month/Year precision, day set to 1).
- age_group
Age group (18 levels: <5, 5-9, ..., 85+).
- sex
Sex (Male, Female).