Year Dollars 1992-01-01 558043 1997-01-01 280297 2002-01-01 3356843 2003-01-01 846795 2004-01-01 688526 2005-01-01 567876 2006-01-01 1390451 2007-01-01 4049310 2008-01-01 1835283 2009-01-01 748762 2010-01-01 1949618 2011-01-01 2402220 2012-01-01 3339712 2013-01-01 1806781 2014-01-01 3945410 2015-01-01 2180087 2016-01-01 3943765