Trends in Buildings Floorspace Data Tables

Table 1. Number of commercial buildings, relative standard errors, and 95% confidence ranges by survey year

Year	Million Buildings	Relative Standard Error (%)	95% Confidence Range (million buildings)
1979*	3.794	3.8	3.511 to 4.077
1983*	4.121	3.7	3.822 to 4.420
1986	4.154	3.5	3.869 to 4.439
1989	4.527	3.2	4.244 to 4.812
1992	4.806	3.7	4.457 to 5.155
1995	4.579	3.9	4.229 to 4.929
1999	4.657	4.2	4.274 to 5.040
1989**	4.342	3.3	4.070 to 4.614
1992**	4.672	3.6	4.333 to 5.011
*   estimates adjusted to account for 1979 and 1983 undercount ** estimates adjusted to match the 1995 CBECS definition of target population
Energy Information Administration Commercial Buildings Energy Consumption Survey

Table 2. Amount of commercial floorspace, relative standard errors, and 95% confidence ranges by survey year

Year	Billion Square Feet	Relative Standard Error (%)	95% Confidence Range (billion sq. ft.)
1979*	51.088	3.6	47.483 to 54.693
1983*	56.116	3.4	52.376 to 59.376
1986	58.199	3.0	54.777 to 61.621
1989	63.184	3.2	59.221 to 67.147
1992	67.876	3.7	62.954 to 72.798
1995	58.772	3.4	54.855 to 62.689
1999	67.337	3.5	62.718 to 71.956
1989**	59.915	3.1	56.157 to 63.673
1992**	64.269	3.6	59.734 to 68.804
*   estimates adjusted to account for 1979 and 1983 undercount ** estimates adjusted to match the 1995 CBECS definition of target population
Energy Information Administration Commercial Buildings Energy Consumption Survey Top Return to “Trends in Buildings and Floorspace”

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