Year Dollars 1992-01-01 2469395 1997-01-01 882884 2002-01-01 1255326 2003-01-01 2079026 2004-01-01 2145928 2005-01-01 4063014 2006-01-01 4468721 2007-01-01 9493085 2008-01-01 32688715 2009-01-01 12333851 2010-01-01 19024450 2011-01-01 18110182 2012-01-01 4637249 2013-01-01 5068553 2014-01-01 3261403 2015-01-01 7909727 2016-01-01 2318196