The percentage of uninsured Americans in April hit its lowest point ever since Gallup began its monthly tracking poll in 2008.

The uninsured rate dropped to 13.4 percent in April, according to the Gallup poll released Monday, down from 15.6 percent in the first quarter of 2014 and a peak of 18 percent before Obamacare enrollment started in October.

The previous low recorded by Gallup was 14.4 percent in mid-2008.

The 4.6 percentage-point drop since Obamacare enrollment launched is the equivalent of 11 million adults gaining insurance.

The April results were based on a survey of 14,704 U.S. adults, conducted from April 1 to 30. Its margin of error was 1 percentage point.