Year	current US$
1984	611538473.1934732
1985	643706270.3962704
1986	671875012.5
1987	612875012.5
1988	614499962.5
1989	740750012.5
1990	615888125
1991	83600694.44444445
1992	36891479.02575551
1993	162105372.68830374
1994	355435476.9980466
1995	509144791.39135355
1996	577976420.559459
1997	376257327.8800273
1998	502639653.34744644
1999	633902317.1614772
2000	1071819204.4886395
2001	1372290895.1691494
2002	1533305461.7401845
2003	1902121187.2819839
2004	2456928760.5215125
2005	2968774766.508554
2006	3175678040.114766
2007	3679616490.9026856
2008	4608745039.19227
2009	4162217992.944059
2010	3614892807.751859
2011	4049449495.1045203
2012	3490030384.945331
2013	3584049924.421189
2014	3396286215.3962836
2015	2939977128.1210494
2016	2991848400.0241656
2017	3261771860.0466666
2018	3623932111.6348643
2019	3544359948.549503
2020	3482126461.1136675
2021	4448984737.248841