Year	US Dollars adjusted for inflation)
1995	10507168850.136
1996	11066554220.3539
1997	12372254758.3177
1998	12881652376.2825
1999	12771327686.6327
2000	14121011168.8073
2001	15014689085.8925
2002	15927040858.0414
2003	17108216227.3352
2004	18185135022.5104
2005	19889757107.0738
2006	21932809902.7181
2007	23632206205.7045
2008	22351469214.5471
2009	19060348608.4809
2010	19490936349.1753
2011	20971721297.2151
2012	21875027647.655
2013	22298647061.5152
2014	22943236497.836
2015	23327372037.3633
2016	23808677023.3013
2017	24964382783.2038