HENDERSONVILLE, TN— U.S. RevPAR for the week ending June 4 showed a 4.9% year over year growth rate, according to statistics released by Smith Travel Research. RevPAR growth was driven entirely by ADR since occupancy was flat. The positive performance meant May ended on an even healthier note with RevPAR growth for the previous four weeks climbing 9% year over year. Luxury and upper upscale hotels, meanwhile, outperformed other industry segments in the week ending June 4, while the economy segment lagged the industry as a whole.