Average annual percent change in output per hour, output, and hours in the engineering services industry, selected periods, 1987-2003 Average annual percent change Year Output per Output Hours hour 1987-2003 0.6 2.4 1.8 1990-1995 -1.0 -0.6 0.4 1995-2000 1.8 6.2 4.3 2000-2003 -1.5 -2.5 -1.1