Year	current US$
1975	438446359.625
1976	1085799703.59
1977	1903860467.9700003
1978	2628540133.96
1979	3169839504.27
1980	5294965424.1
1981	4979135238
1982	6021563446.299999
1983	6539707092.1
1984	5679748870.5
1985	5802175384.7
1986	5589540496.599999
1987	5944809723.1
1988	5309743396.448
1989	5748542119.575999
1990	5571348376.548
1991	6051067455.752
1992	5932209558.424
1993	6664947308.712
1994	9524337206.469
1995	9997037447.538002
1996	12284445954.988052
1997	14550388902.427792
1998	13340378995.37057
1999	15077036448.317587
2000	17193975421.286575
2001	19157188517.290215
2002	24124362140.435726
2003	30351370033.66218
2004	28678483381.639126
2005	33909208828.76925
2006	42507198068.3555
2007	54029097315.39874
2008	71707884028.06323
2009	74911674450.1611
2010	81997033718.8324
2011	96395627272.84207
2012	107979911629.8564
2013	110834477983.34402
2014	115816281171.27269
2015	117612821345.58849
2016	110677220007.97643
2017	117313440762.23425
2018	131744994735.4212
2019	139830764844.69135
2020	147114980901.5604
2021	157038730583.4092
2022	176486579387.2487