3.2.1	Total Commercial Floorspace and Number of Buildings, by Year
			Commercial Sector					Percent Post-
			Floorspace (10^9 square feet)					2000 Floorspace (2)				Buildings (10^6)
1980			50.9	(1)				N.A.				3.1	(3)
1990			64.3					N.A.				4.5	(3)
2000 (4)			68.5					N.A.				4.7	(5)
2008 (4)			78.8					15%				N.A.
2010 (4)			81.2					26%				N.A.
2015 (4)			85.5					35%				N.A.
2020 (4)			91.5					45%				N.A.
2025 (4)			97.4					54%				N.A.
2030 (4)			103.5					62%				N.A.
2035 (4)			109.8					70%
Note(s):	1) Based on PNNL calculations. 2) Percent built after Dec. 31, 2000. 3) Actually for previous year. 4) EIA now excludes parking garages and commercial buildings on multi-building manufacturing facilities from the commercial building sector. 5) Data is from 1999. In 1999, commercial building floorspace = 67.3 billion square feet.