By: Vera Gruessner Healthcare spending within the private health insurance market has grown 4.6 percent in 2015, according to a press release from the Health Care Cost Institute (HCCI). This type of growth in spending is higher than in recent years. For instance, healthcare spending in 2014 saw a 2.6 percent rise while 2013 spending increased by 3 percent. The HCCI study, called the 2015 Hea...