More than 12.2 million people selected a plan through the Health Insurance Marketplaces during 2017 open enrollment, about 500,000 fewer than last year, according to a final report released today by the Centers for Medicare & Medicaid Services. More than 9.2 million people enrolled through, and the rest through the 12 state-based marketplaces. Three-quarters of enrollees selected a silver plan, 83% qualified for an advance premium tax credit and 58% for cost-sharing reductions. Consumers with an APTC reduced their monthly premium by an average $383 to $106. More than 3.8 million enrollees were new to the marketplaces. In the 38 states using in both 2016 and 2017, about half of returning consumers switched plans. For additional data on 2017 plan selections, consumer demographics, premiums and financial assistance, visit