Year Dollars 2002-01-01 621421 2003-01-01 2307682 2004-01-01 1121470 2005-01-01 666788 2006-01-01 3179716 2007-01-01 1981268 2009-01-01 2012162 2010-01-01 9326335 2011-01-01 3540076 2012-01-01 938946 2014-01-01 1502667 2015-01-01 5308342