Year Dollars 1992-01-01 12055728 1997-01-01 14618186 2002-01-01 3013958 2003-01-01 8292265 2004-01-01 18018619 2005-01-01 9193720 2006-01-01 10642949 2007-01-01 23255512 2008-01-01 33353390 2009-01-01 24295618 2010-01-01 47394131 2011-01-01 37567909 2012-01-01 67066301 2013-01-01 38175138 2014-01-01 52397063 2015-01-01 54620965 2016-01-01 50101419