Year	current US$
1993	184900000
1994	251400000
1995	465900000
1996	907200000
1997	918500000
1998	934000000
1999	746500000
2000	1000900000
2001	1132400000
2002	1329300000
2003	1681400000
2004	1941400000
2005	2324800000
2006	2657300000
2007	3543300000
2008	4580000000
2009	3714500000
2010	4798600000
2011	5616000000
2012	6328100000
2013	7531200000
2014	7916200000
2015	6662400000
2016	6857800000
2017	7883700000
2018	8816800000
2019	9623500000
2020	8777500000
2021	10301014459.88
2022	9233505923.44
2023	8503845521.81