Unit labor costs, selected industries, 1987-98 Index (1987=100) Year SIC 3711 SIC 3714 SIC 3465 Motor Motor Automotive vehicle vehicle stampings assembly parts 1987 100.0 100.0 100.0 1988 93.6 99.9 102.5 1989 101.4 106.9 108.1 1990 108.1 111.5 116.4 1991 122.0 116.0 125.4 1992 118.3 108.8 111.5 1993 118.5 104.2 104.3 1994 112.2 100.1 102.7 1995 113.3 99.3 100.2 1996 109.1 95.3 95.6 1997 109.9 95.1 93.2 1998 114.9 101.0 91.2 SIC = Standard Industrial Classification