New orders for US manufactured durable goods - - expected to last at least three years – in December increased $0.5 billion or 0.3 per cent to $167.9 billion, the US Census Bureau announced today. This increase followed two consecutive monthly decreases including a 0.4 per cent November decrease. Excluding transportation, new orders increased 0.9 per cent . Excluding defense, new orders increased 0.3 per cent . Machinery, up three of the last four months, had the largest increase, $1.4 billion or 6.0 per cent to $24.1 billion. Meanwhile, the number of US workers filing new claims for jobless benefits fell slightly last week, the Labor Department said in its weekly report Thursday.