| http://www.w3.org/ns/prov#value | - The 15.6% increase in total revenues was due to a 9.9% increase in rental and lease revenues and a 22.9% increase in sales of equipment and other revenues.Selling, general and administrative expenses increased 16.6% to $31.8 million in the first six months of fiscal 2012 compared to $27.3 million in the first six months of fiscal 2011.
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