NASHVILLE — BlueCross BlueShield of Tennessee, the dominant provider of health care exchange plans in the state, has requested permission to raise rates of its exchange plans by an average of 19 percent in 2015, The Tennessean reported today.

Of the 130,000 Tennesseans who have purchased plans on the Marketplace under the Affordable Care Act, 88 percent have plans covered by BlueCross BlueShield.

Those plans would increase from 6.1 percent to 21.7 percent, depending on the type of plan, in 2015.

The Tennessean also reported that Cigna has requested an average rate increase of 7.5 percent. Kentucky-based Humana has requested an average increase of 14.4 percent on its marketplace plans.

The reasoning behind the request by the insurers is the morbidity of the people who are purchasing insurance on the federal exchange.