As of the end of the 2015 Affordable Care Act open enrollment period, 11.7 million people had signed up for coverage in a Health Insurance Marketplace (though somewhat fewer likely ended up paying their first month’s premium and getting covered.)

2015 Marketplace signups varied substantially across states when looked at as a share of the “potential market” for the Marketplaces, ranging from a high of 70% in Vermont and 64% in Florida to lows of less than 25% in Iowa, South Dakota, Minnesota, North Dakota, Hawaii, and Alaska.