CONCENTRATIONS (Tables)

12 Months Ended

Dec. 31, 2015

Revenues

Concentrations

Schedule of concentration risk from properties

	Year Ended December 31,
	2015		2014		2013
California	62.2	%	60.4	%	57.1	%
Washington, D.C.	24.2		24.7		26.5
Texas	7.8		7.7		8.1
North Carolina	4.6		5.1		6.1
New York	1.2		2.1		2.2
	100.0	%	100.0	%	100.0	%

Real estate investments

Concentrations

Schedule of concentration risk from properties

	December 31,
	2015		2014
California	52.6	%	52.3	%
Washington, D.C.	31.1		31.2
Texas	7.4		7.4
North Carolina	5.3		5.5
New York	3.6		3.6
	100.0	%	100.0	%