Year	current US$
1980	2619156772.0261
1981	2630163169.50359
1982	2584875272.24184
1983	2220713059.58905
1984	2383940384.96501
1985	2321920259.2078
1986	2767184442.56568
1987	3817258084.01376
1988	3085069865.81878
1989	3089284328.85802
1990	2951234955.4086
1991	1546064049.49319
1992	1353295750.3074
1993	1468219472.88927
1994	1015475146.78901
1995	1152770685.46267
1996	810918477.460492
1997	694909682.819913
1998	1515412368.43567
1999	1617107826.76232
2000	1692249242.1288
2001	1805742724.64519
2002	2180932783.94609
2003	3043476988.90639
2004	3654402090.14168
2005	4282040890.59917
2006	4855383295.56637
2007	6042089459.51032
2008	6707208924.87671
2009	7362381647.67919
2010	7732012015.80654
2011	8269031000.5543
2012	7562671829.98133
2013	7650323376.42247
2014	8422315955.33859
2015	7312148869.03286
2016	7715069181.1844
2017	8361732268.43561
2018	9567946972.69478
2019	9842966046.86693
2020	9973796608.15645
2021	11865809707.1255