WASHINGTON (AP) — A couple of government reports say the number of uninsured U.S. residents fell by more than 11 million since President Barack Obama signed the health care overhaul five years ago.

The Centers for Disease Control and Prevention say that still would leave about 37 million people uninsured. Still, it was the lowest level measured in more than 15 years.

The most dramatic change took place during the first nine months of 2014. As the law's major coverage expansion was taking effect, the number of uninsured fell by 7.6 million.

Monday was the law's fifth anniversary, and supporters and detractors again clashed over its impact.

Obama says the law in many ways is "working even better than anticipated."

House Speaker John Boehner says it amounts to a "legacy of broken promises."

(Story by: Ricardo Alonso-Zaldivar, The Associated Press)