Due to major methodology changes, BRFSS data from 2010 and prior are not compatible with later years. 2011 was the first year that officially included responses from a “dual frame” (both land line and cell phone) sample. BRFSS weighting methods also changed in 2011. If you are not familiar with these issues, please see CDC’s brief on the changes affecting 2011 and beyond: https://www.cdc.gov/surveillancepractice/reports/brfss/brfss.html
Below, please select data years needed.