DISTRIBUTIONS OF AVAILABLE CASH (Tables)

12 Months Ended

Dec. 31, 2012

DISTRIBUTIONS OF AVAILABLE CASH

Summary of Distribution Paid Per Unit

	Year
	2012		2011		2010
First Quarter	$	0.6375	$	0.5275	$	0.4525
Second Quarter	$	0.6675	$	0.5550	$	0.4650
Third Quarter	$	0.6975	$	0.5825	$	0.4825
Fourth Quarter	$	0.7200	$	0.6100	$	0.5000