TABLE A-2 Multifactor Productivity: 1991-2001

TABLE A-2 Multifactor Productivity: 1991-2001

Multifactor productivity measures the changes in output per unit of combined input and is a measure of the efficiency with which inputs are utilized. Inputs include labor, capital services and intermediate purchases. Examples of non-labor inputs include rail cars and airplanes, as well as fuel.

Index: 1991 = 100.0

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  Railroad transportation Air transportation Business sector (all industries)
1991 100.0 100.0 100.0
1992 106.4 103.6 102.3
1993 109.8 100.5 102.8
1994 112.2 107.0 103.9
1995 118.8 111.3 104.1
1996 123.2 115.5 105.8
1997 123.3 116.8 107.1
1998 122.0 115.7 108.5
1999 125.9 117.8 109.4
2000 U 121.3 111.1
2001 U 116.2 109.9

KEY: U = data are unavailable.

NOTES: Rail productivity data are only available through 1999. Source data are indexes with base years of 1997 (air), 2000 (business), and 1987 (rail). The Bureau of Transportation Statistics reindexed these data so that 1991 is the base year for all.

SOURCE: U.S. Department of Labor, Bureau of Labor Statistics, available at http://www.bls.gov/, as of August 2006. Business sector-"Most Requested Statistics." Rail-"Industry Multifactor Productivity Data Table by Industry, 1987-1999." Air-"Multifactor Productivity Data For Air Transportation."