Growth in U.S. health-care spending quickened slightly in 2015 and will continue to rise at a moderate pace over the next decade, but not at the fast clip seen in the 20-year period before the recession, federal actuaries said. Spending on all health care is estimated to have grown 5.5% in 2015 compared with 5.3% growth the previous year. Growth is expected to dip to a slightly lower rate of 4.8% in 2016, according to actuaries at the Centers for Medicare and Medicaid Services. Their report, published in the journal Health Affairs, projects spending growth will reach 6% in 2025. The pickup in the past two years follows five consecutive years in which average spending growth through 2013 was less than 4% annually, the lowest rates since the government began tracking health-care spending in the 1960s.