Market Share of the Health Providers Nov 26, 2012 December Aviva Health Laya VHI Restricted Membership 2008 7.7% 21.6% 66.8% 3.9% 2009 10.4% 22.8% 62.9% 3.9% 2010 13.7% 20.8% 61.6% 3.9% 2011 17.7% 20.9% 57.3% 4.0% Submit a Comment Cancel replyYou must be logged in to post a comment.