Year US Dollars adjusted for inflation) 1995 29973079669.4402 1996 31027017316.3351 1997 32613857009.5778 1998 33685428176.1259 1999 35462116830.84061 2000 36935721676.5757 2001 38025091121.17939 2002 39483849698.5294 2003 40606013481.9797 2004 42373104165.10239 2005 44069302645.23901 2006 46561862055.1658 2007 49794021535.96039 2008 51437289127.81721 2009 47426581431.51471 2010 48013606745.4803 2011 48325391228.4831 2012 47035305257.5313 2013 46502839741.4843 2014 47888250500.46391 2015 48969999339.18871 2016 50511749001.81761 2017 53037744699.125