Annual average percent change in unit labor costs and output per hour, selected industries, 1987-96/7 Change in Change in unit labor cost output per hour Variety stores (1) -5.4 9.4 Radio, TV, computer, and music stores (1) -3.3 8.2 Bituminous coal (1) -3.1 5.9 Railroad transportation (2) -3.0 5.9 Women's and children's undergarments (2) -2.1 6.2 Communications equipment (2) -2.1 7.4 Metal cans and shipping containers (2) -1.7 5.0 Railroad equipment (2) -1.7 4.3 Misc. primary metal (2) -1.5 4.6 Household appliance stores (1) -1.5 4.1 Barber shops (1) -1.4 4.4 Ophthalmic goods (2) -1.2 7.3 Blast furnace and basic steel (2) -1.2 4.9 Yarn and thread mills (2) -1.1 4.3 Engines and turbines (2) -1.1 3.6 Telephone communications (1) -0.8 4.8 Beverages (2) -0.5 3.4 Knitting mills (2) -0.5 4.7 Measuring and controlling devices (2) -0.5 4.6 Flat glass (2) -0.5 0.5 Public building and related furniture (2) -0.4 6.7 Department stores (1) -0.3 2.3 Construction machinery (2) -0.2 2.4 SIC = Standard Industrial Classification (1) 1987-97 (2) 1987-96