"The data for 2013 and beyond reflect the implementation of the redesigned income questions." https://www.census.gov/content/dam/Census/newsroom/press-kits/201

"The data for 2013 and beyond reflect the implementation of the redesigned income questions." https://www.census.gov/content/dam/Census/newsroom/press-kits/2016/20160913_iphi_slides.pdf https://www.census.gov/content/dam/Census/newsroom/press-kit...