3.6 : Office Building Markets and Companies




3.6.2 Energy Expenditures per Square Foot of Office Floorspace by Building Age ($2009) (1)
Number of Number of Number of
Age (years) 2009 Responses 2006 Responses 2004 Responses
0-9 2.1 451 2.1 483 1.8 564
10-19 1.9 582 2.3 503 2.0 848
20-29 2.1 1,161 2.4 939 2.0 786
30-39 2.4 416 2.7 314 2.3 290
40-49 2.5 150 3.0 68 2.9 57
50+ 2.5 187 2.5 128 2.1 164
All Buildings 2.2 3,494 2.4 2,619 1.8 2,939
Note(s): 1) Energy includes electric, gas, fuel oil, purchased steam, purchased chilled water, and water/sewage expenditures.









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