Year Dollars 1992-01-01 760191 1997-01-01 2222202 2002-01-01 517926 2003-01-01 517366 2004-01-01 997638 2005-01-01 1106599 2006-01-01 2395516 2007-01-01 3292063 2008-01-01 3031992 2009-01-01 1406274 2010-01-01 4645973 2011-01-01 7906006 2012-01-01 4454947 2013-01-01 5310400 2014-01-01 6651065 2015-01-01 6871949 2016-01-01 3467667