Year	current US$
1982	617319999.9999999
1983	542000000
1984	403000000
1985	271000000
1986	445280000
1987	228040000.00000003
1988	326340000
1989	188860000
1990	195940000
1991	389820000.00000006
1992	619380000
1993	631380000.0000001
1994	857000000
1995	350000000
1996	1672000000
1997	4589000000
1998	344000000
1999	530000000
2000	758082000
2001	1209000000
2002	2353070421.5742
2003	4625331810
2004	6641220178.7534
2005	3337061829.2962
2006	4319492608.79338
2007	6833129702.14478
2008	9136546899.82745
2009	9209489821
2010	13636040942
2011	16568371453
2012	17065623287
2013	17790105219
2014	29910500593.04
2015	33104675861.87
2016	26883278893.8
2017	28675983092.3
2018	24305605210.61
2019	18294313104.25
2020	18876250770.21
2021	22479899032.72
2022	26105771684
2023	49500000000