The number of Americans filing for unemployment benefits last week fell from a five-month high, suggesting sustained labor market healing that could lead to further Federal Reserve interest rate hikes next year. Initial claims for state unemployment benefits dropped 11,000 to a seasonally adjusted 271,000 for the week ended Dec.12, the Labor Department said on Thursday. It was the 41st straight week that claims remained below 300,000, a threshold associated with strong labor market conditions.