DISTRICT	Leasing Cost (per square foot/year)	Purchase Cost (per acre)	Vacancy Rate
Central Business (office)		$522,720 - $1,481,040
Class A	$23.40 - $24.00		2.0%
Class B	$15.00 - $20.00		2.0%
Suburban (office)		$348,480 - $698,960
ClassA	$19.80 - $23.40		4.5%
Class B	$15.00 - $20.00		4.5%
Industrial		$152,460 - $348,480
Bulk Warehouse	$3.12 - $3.84		6.8%
Manufacturing	$5.40 - $7.20		5.3%
Source: NAI Capital Commercial Real Estate, January 2008