Total spending on health care is projected to reach $4.1 trillion by 2016.
Poisal, John A., Christopher Truffler, Sheila Smith, Andrea Sisko, Cathy Cowan, Sean Keehan, Bridget Dickensheets, and National Health Care Expenditures Team. Health Spending Projections Through 2016: Modest changes obscure Part D’s impact. Health Affairs. February 2007; http://content.healthaffairs.org/cgi/content/abstract/hlthaff.26.2.w242