Measurement Differences


	Brass


	2006


	API

	Total Barrels

	Barrels Loss

	Barrels Loss

	Mean NSV Loss

	Standard Deviation

	Number of Records


	35.10


	45,422,333


	-72,613


	-0.16

%


	-0.14

%


	0.43

	56

%


	2005


	Mean NSV Loss

	Standard Deviation

	Number of Records


	-0.01

	0.28

	37

%

%