Assumptions to the Annual Energy Outlook 2003

Table 15.    Floorspace Attrition Parameters

 

Assem-
bly

 Educa- tion

Food Sales

Food Service

Health
Care

Lodging

Large Office

Small Office

Merc/ Service

Ware- house

Other

Median Expected
   Lifetime (years)

34

34

20

27

30

28

21

24

34

24

42

gamma

2.2

3.0

1.6

1.9

2.3

2.2

1.7

1.6

2.4

1.9

2.5

Source:  Energy Information Administration, Commercial Buildings Energy Consumption Survey 1999, 1995, and 1992 Public Use Data.