Year Dollars 1997-01-01 319186 2002-01-01 945478 2003-01-01 610772 2004-01-01 1717948 2005-01-01 2776244 2006-01-01 16550560 2007-01-01 20319737 2008-01-01 42810375 2009-01-01 23493528 2010-01-01 27528715 2011-01-01 49591147 2012-01-01 52015679 2013-01-01 30480208 2014-01-01 13850745 2015-01-01 14150818 2016-01-01 14722183