| http://www.w3.org/ns/prov#value | - This increase was a result of an increase in commissions of $1.8 million, from $22.9 million for the year ended December 31, 2004 to $24.7 million for the year ended December 31, 2005, partially offset by an increase in net trading losses of $0.8 million, from $0.3 million for the year ended December 31, 2004 compared to $1.1 million for the year ended December 31, 2005.
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