Click here to see a mobile-friendly version of this tool.
Click here to download KHN’s full data set.
Data analysis by KHN data editor Elizabeth Lucas and KHN senior correspondent Fred Schulte. Data visualizations by KHN producer Caitlin Hillyard.
Some elements may be removed from this article due to republishing restrictions. If you have questions about available photos or other content, please contact khnweb@kff.org.