Year Dollars 1997-01-01 1013836 2002-01-01 2738993 2003-01-01 2415172 2004-01-01 1164666 2005-01-01 4192930 2006-01-01 1098310 2007-01-01 3342752 2008-01-01 4733057 2009-01-01 3016217 2010-01-01 4740434 2011-01-01 2377184 2012-01-01 1267716 2013-01-01 11272921 2014-01-01 2548749 2015-01-01 1816240 2016-01-01 1503657