The Labor Department said Thursday that 1.5 million Americans filed new state unemployment claims last week — the lowest number since the coronavirus pandemic shut down much of the U.S. economy in March, but far above normal levels. The weekly report on unemployment claims comes after the government reported that jobs rebounded last month and that the unemployment rate fell unexpectedly to 13.3 percent. Correcting for a classification error, the actual rate was closer to 16.4 percent — still lower than in April, but higher than at any other point since the Great Depression.