1. [BEA] Bureau of Economic Analysis. 2022. Regional price parity. [Data set] https://www.bea.gov/data/prices-inflation/regional-price-parities-state-and-metro-area.
2. [WSDOH] Washington State Department of Health. 2022. Behavior risk factor surveillance system (BRFSS). [Data set]. https://doh.wa.gov/behavioral-risk-factor-surveillance-system-brfss.
3. [WSDOT] Washington State Department of Transportation. 2018. Crash data. [Data set]. https://wsdot.wa.gov/about/transportation-data/crash-data.
4. [WSDOT] Washington State Department of Transportation. 2019. Monthly vehicle miles traveled. [Data set]. https://wsdot.wa.gov/about/transportation-data/travel-data/annual-mileage-and-travel-information.