Year Dollars 1992-01-01 3382380 1997-01-01 3710075 2002-01-01 5421412 2003-01-01 4667803 2004-01-01 8734877 2005-01-01 12138191 2006-01-01 26809080 2007-01-01 28260328 2008-01-01 42468438 2009-01-01 69327903 2010-01-01 36337359 2011-01-01 54457880 2012-01-01 70842078 2013-01-01 72643990 2014-01-01 97661325 2015-01-01 133747686 2016-01-01 57654454