Character string specifying the geographic level and adjustment type.
Default is "state_adjusted". Valid options are:
"state_current_adjusted" - Current seasonally adjusted state data
"state_unadjusted" - All historical unadjusted state data
"state_adjusted" - All historical seasonally adjusted state data (default)
"region_unadjusted" - Unadjusted regional and division data
"region_adjusted" - Seasonally adjusted regional and division data
"metro" - Metropolitan statistical area data
"division" - Division-level data
"micro" - Micropolitan statistical area data
"combined" - Combined statistical area data
"county" - County-level data (large file >300MB)
"city" - City and town data (large file >300MB)
"1990-1994" - Comprehensive unadjusted data for 1990-1994
"1995-1999" - Comprehensive unadjusted data for 1995-1999
"2000-2004" - Comprehensive unadjusted data for 2000-2004
"2005-2009" - Comprehensive unadjusted data for 2005-2009
"2010-2014" - Comprehensive unadjusted data for 2010-2014
"2015-2019" - Comprehensive unadjusted data for 2015-2019
"2020-2024" - Comprehensive unadjusted data for 2020-2024
"2025-2029" - Comprehensive unadjusted data for 2025-2029
"ST" - Any state two-character USPS abbreviation, plus DC and PR