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Market Concentrations (Tables)

12 Months Ended

Dec. 31, 2013

Schedule of revenues concentration from major customers

Total gross revenues by customer for each customer representing 10% or more of consolidated gross revenues are summarized below for the years ended December 31:



	2013	2012	2011

Customer 1	19%	35%	36%
Customer 2	23%	30%	28%
Customer 3	23%	28%	31%
Customer 4	24%	1%	—%

- Definition

Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.

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