Year	US Dollars adjusted for inflation)
1995	19315603344.62889
1996	20310348886.62689
1997	21994732573.5165
1998	23637117966.243
1999	23368921086.7508
2000	24264340357.11109
2001	25847450471.085
2002	27594931858.1505
2003	30503041625.9376
2004	32501016178.3459
2005	35012502275.965
2006	37605683774.4175
2007	41775008781.76141
2008	42872888580.5938
2009	36521628847.8295
2010	37120517693.8622
2011	39363759100.2663
2012	40870192057.67161
2013	42300068778.4613
2014	43796470015.265
2015	44687574443.1892
2016	45735444769.20749
2017	47486625803.5491