Year Dollars 1992-01-01 462894 1997-01-01 2175112 2003-01-01 1605084 2004-01-01 1510568 2005-01-01 1929383 2006-01-01 2028926 2008-01-01 4905131 2009-01-01 4306383 2010-01-01 2262618 2011-01-01 2250261 2012-01-01 5480501 2013-01-01 3669945 2014-01-01 5171852 2015-01-01 4628002 2016-01-01 6137774