## Table 3-24b: Labor Productivity Indices for Selected Transportation Industries (North American Industry Classification System [NAICS] basis)

(Index, 1997 = 100)

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1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
Output per hour a worked
Air transportationb 81 82 79 78 78 81 85 91 95 99 100 98 98 98 92 (R) 102 (R) 113 126
Line-haul railroads 59 64 68 70 75 82 86 89 92 98 100 102 105 114 122 132 142 146
General freight trucking, long-distance (R) 86 (R) 86 (R) 85 (R) 89 (R) 93 (R) 98 (R) 96 (R) 98 (R) 96 (R) 95 100 (R) 99 (R) 99 (R) 102 (R) 103 (R) 107 (R) 111 110
Postal Service (R) 91 (R) 90 (R) 90 (R) 94 (R) 94 (R) 95 (R) 98 (R) 98 (R) 98 (R) 97 100 (R) 102 (R) 103 (R) 105 (R) 106 (R) 106 (R) 108 110
Output per employeec
Air transportationb 81 82 79 78 78 81 85 91 95 99 100 98 98 98 92 (R) 102 (R) 113 126
Line-haul railroads 57 62 64 68 70 76 80 86 91 97 100 99 102 110 113 119 128 133
General freight trucking, long-distance (R) 83 (R) 84 (R) 83 (R) 86 (R) 89 (R) 95 (R) 95 (R) 98 (R) 95 (R) 96 100 (R) 99 (R) 100 (R) 103 (R) 103 (R) 108 112 114
Postal Service (R) 87 (R) 87 (R) 87 (R) 91 (R) 92 (R) 95 (R) 98 (R) 98 (R) 96 (R) 96 100 (R) 101 (R) 102 (R) 106 (R) 105 (R) 105 (R) 107 111

KEY: R = revised.

a Based on the number of paid hours.

b The average weekly hours were assumed to be constant for air transportation industries; therefore, the output per hour worked and the output per employee measures are identical.

c Full-time and part-time employees are counted equally. Hence, these data do not reflect output per full-time equivalent employee.

NOTE

BLS developed labor productivity indexes for all manufacturing and retail trade of the North American Industry Classification System (NAICS) industries as well as selected mining, transportation, communications and services industries. Indexes for petroleum pipelines and bus (class I) systems were created under the Standard Industrial Classification (SIC) system but have not yet been developed under NAICS. Productivity measures for NAICS start in 1987.

SOURCE

U.S. Department of Labor, Bureau of Labor Statistics, Industry Productivity, Internet site http://www.bls.gov/lpc as of Oct. 19, 2006.