Year Dollars 1992-01-01 31052099 1997-01-01 62808161 2002-01-01 634027218 2003-01-01 550288515 2004-01-01 754550324 2005-01-01 746829301 2006-01-01 1332318972 2007-01-01 1377425677 2008-01-01 2434235830 2009-01-01 2864590047 2010-01-01 3683685335 2011-01-01 3101228346 2012-01-01 2578886029 2013-01-01 3281727027 2014-01-01 4060169244 2015-01-01 4641910002 2016-01-01 5627644225