Average Weekly hours in help supply, SIC 7363, all services and total private sector, nonsupervisory workers 1982-98 Year Help supply Services industry Total private 1982 27.1 32.6 34.8 1983 28.5 32.7 35 1984 29.7 32.6 35.2 1985 30.5 32.5 34.9 1986 31.1 32.5 34.8 1987 30.9 32.5 34.8 1988 31.3 32.6 34.7 1989 30.7 32.6 34.6 1990 30.8 32.5 34.5 1991 30.9 32.4 34.3 1992 31.1 32.5 34.4 1993 31.3 32.5 34.5 1994 31.8 32.5 34.7 1995 31.8 32.4 34.5 1996 32.1 32.4 34.4 1997 32.4 32.6 34.6 1998 32.4 32.6 34.6