Year Dollars 1992-01-01 333884 2002-01-01 472876 2003-01-01 2291612 2004-01-01 1288908 2005-01-01 2501453 2006-01-01 1510766 2007-01-01 2447861 2008-01-01 4181172 2009-01-01 5758123 2010-01-01 20290655 2011-01-01 4241074 2012-01-01 2559371 2013-01-01 4978779 2014-01-01 6667363 2015-01-01 18657756 2016-01-01 1330485