From fiscal years 2009 through 2016, the Bureau of Prisons (BOP) obligated more than $9 billion for the provision of inmate health care and several factors affected these costs. Obligations for health care rose from $978 million in fiscal year 2009 to $1.34 billion in fiscal year 2016, an increase of about 37 percent. On a per capita basis, and adjusting for inflation, health care obligations rose from $6,334 in fiscal year 2009 to $8,602 in fiscal year 2016, an increase of about 36 percent. BOP cited an aging inmate population, rising pharmaceutical prices, and increasing costs of outside medical services as factors that accounted for its overall costs.