National spending on healthcare is projected to grow 5.5% between 2018 and 2027, according to the CMS Office of the Actuary's annual report. This growth would outpace average projected GDP growth by 0.8%. The forecast means the healthcare segment of the U.S. economy would climb to 19.4% by 2027, up from 17.9% just two years ago.
A summary of the forecast can be obtained at https://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/NationalHealthExpendData/Downloads/ForecastSummary.pdf.