Year Dollars 1992-01-01 963563 1997-01-01 1675044 2002-01-01 1694782 2003-01-01 816683 2005-01-01 2933631 2006-01-01 8997128 2007-01-01 4747313 2008-01-01 32152144 2009-01-01 12001656 2010-01-01 24317679 2011-01-01 8857270 2012-01-01 26144905