Year Dollars 1997-01-01 30498 2002-01-01 304799 2003-01-01 307396 2004-01-01 670135 2005-01-01 1253354 2006-01-01 1490867 2007-01-01 2856584 2008-01-01 1105107 2009-01-01 676124 2010-01-01 742463 2011-01-01 326874 2012-01-01 2572856 2013-01-01 1360443 2014-01-01 595304 2015-01-01 1163652 2016-01-01 1779089