The uninsured rate among adults in the U.S. for the fourth quarter of 2014

...averaged 12.9%, compared to an uninsured rate of 17.1% for the same period one year ago, according to Gallup.

Source: "In U.S., Uninsured Rate Sinks to 12.9%," Gallup.com, January 7, 2015, http://www.gallup.com/poll/180425/uninsured-rate-sinks.aspx