Year	US Dollars adjusted for inflation)
1999	46322057225.73849
2000	48026344512.61289
2001	47179698570.1011
2002	46727316322.52519
2003	52809344317.7121
2004	55165501857.1698
2005	61714049045.1692
2006	65725799949.0192
2007	69900911108.9382
2008	71765417108.49579
2009	71198368527.33299
2010	74773444900.53682
2011	28357141373.22
2012	63275999066.53081
2013	54670463193.48269
2014	41549552027.04691
2015	37867414355.5459
2016	36808842590.9579
2017	46627921705.55609