U.S. stocks, debt yields climb on sturdy U.S. GDP data

By Hilary Russ NEW YORK (Reuters) - U.S. stocks and government debt yields climbed on Friday, cheered by stronger-than-expected growth in the world's biggest economy that boosted bets on an imminent U.S. rate increase, while oil prices fell amid a persisting global glut. Healthcare, which had buoyed the benchmark S&P 500 index in previous sessions, was the only negative sector due to results from Amgen and AbbVie . An estimate of U.S. second-quarter gross domestic product showed annualized e