Lighting up cigarettes has gradually become less common in Minnesota, yet recent studies reveal smoking’s decline has been slower in poorer counties and regions of the state.

Smoking has decreased all across the country, according to a recent study by the Institute for Health Metrics and Evaluation , but at much slower rates in areas with lower average income. Data analyzed by IHME was broken down by county spanning the years 1996 to 2012, revealing trends in every state, including Minnesota.