The Joint Center for Housing Studies at Harvard University released its annual report, "The State of the Nation’s Housing 2017," which details housing market trends, demographic trends and housing challenges in the U.S. The report finds that 11.1 million renter households were severely cost burdened in 2015. The U.S. added more homeowners in 2016 than in any other year since 2006, but the homeownership rate declined slightly because of a growth in renter households. Between 2014 and 2015, the number of cost-burdened households declined by 2.2 percent. Despite this trend over the past five years, nearly half of all renters continue to be cost-burdened, and being cost-burdened is especially a problem for very low-income renter households. The report also finds that neighborhoods are becoming more economically segregated.