U.S. healthcare spending grew 3.6 percent in 2013, the slowest rate on record since 1960, federal health officials reported Wednesday. The figures represent good news for the Obama administration in its effort to contain the growth of healthcare costs, though experts disagreed on how much the federal healthcare reform law has played a role. Total medical expenditures in the United States reached $2.9 trillion last year, the Centers for Medicare and Medicaid Services (CMS) said in an annual report. The total share of the economy devoted to health remained largely the same, at 17.4 percent, while health spending per person was $9,255, up from $8,915 in 2012, the report stated.