Year	current US$
1980	1191278000
1981	948644666.666666
1982	1838436000
1983	1707611612.90323
1984	1907667096.77419
1985	1752903225.80645
1986	1621114838.70968
1987	2234539677.41936
1988	2235730967.74194
1989	2923760000
1990	8174526451.61292
1991	18471187.3198847
1992	25185851.8518518
1993	47467398.3765919
1994	183602111.292962
1995	592960782.252007
1996	479770852.71318
1997	942690266.075996
1998	935742145.307894
1999	1666829220.61106
2000	2210731892.43335
2001	1652251227.37581
2002	1488738945.91514
2003	1009507359.10849
2004	1687295188.69417
2005	2089673756.25
2006	2833354141.54216
2007	3945428673.51921
2008	6214584095.86363
2009	5278619182.70258
2010	6445056441.88036
2011	8533582564.44442
2012	10076828492.7258
2013	10744553275.9177
2014	10447154584.048
2015	7601863535.49102
2016	7591899282.40271
2017	8545740162.3311
2018	10378202521.2428
2019	10693615298.8155
2020	8379903101.0067
2021	9467956151.31035