States that expanded Medicaid over the last few years are about to fund a greater portion of the health insurance program, as federal contributions provided through Obamacare decline.

Medicaid spending by the 31 states and District of Columbia that expanded the program is projected to climb 5.9 percent on average next year, according to the Kaiser Family Foundation’s annual Medicaid survey released Thursday. Growth has been slower over the last two years, totaling 1.9 percent in 2016 and 2.4 percent the year before.