Year Dollars 1997-01-01 322390 2003-01-01 502963 2004-01-01 872501 2005-01-01 1341239 2006-01-01 1565145 2007-01-01 3137665 2008-01-01 7274023 2009-01-01 2963052 2010-01-01 2781851 2011-01-01 2425407 2012-01-01 228934 2013-01-01 753258 2014-01-01 778946 2015-01-01 1008280 2016-01-01 1604050