CONCENTRATIONS (Tables)

9 Months Ended

Sep. 30, 2014

Revenues

Concentrations

Schedule of concentration risk from properties

	Three Months Ended September 30,						Nine Months Ended September 30,
	2014			2013			2014			2013
California		60.3	%		56.8	%		60.3	%		57.2	%
Washington, D.C.		24.9			26.4			24.5			26.0
Texas		8.0			8.5			7.8			8.2
North Carolina		4.6			6.1			5.3			6.4
New York		2.2			2.2			2.1			2.2
		100.0	%		100.0	%		100.0	%		100.0	%

Real estate investments

Concentrations

Schedule of concentration risk from properties

	September 30, 2014			December 31, 2013
California		51.7	%		50.5	%
Washington, D.C.		31.7			32.5
Texas		7.5			7.7
North Carolina		5.5			5.6
New York		3.6			3.7
		100.0	%		100.0	%