Year	current US$
1975	2334485514.480145
1976	2639955033.176643
1977	2686709120.48188
1978	2974033458.1875353
1979	3996753138.981219
1980	5392921095.01526
1981	5377878647.224316
1982	5656504869.190309
1983	5075751911.132542
1984	4905882595.866592
1985	5053235112.855583
1986	6244158466.952751
1987	8749791414.287888
1988	11053051509.622398
1989	12810358295.07133
1990	15196664026.092758
1991	16385048260.4187
1992	19838824432.81122
1993	17594043644.38007
1994	17905829777.239243
1995	22353750000.108616
1996	25069101438.01399
1997	25210444990.195663
1998	28638892389.934273
1999	31500040112.0883
2000	32354408267.9096
2001	34254169623.816
2002	37753395512.0995
2003	46138290963.9488
2004	54412727856.7821
2005	59789285628.6819
2006	67854760673.9312
2007	77305814260.2606
2008	81513053466.9724
2009	68899135265.9251
2010	65463888580.5193
2011	69001213273.3288
2012	61914833181.9444
2013	60143323595.8089
2014	66748972284.5003
2015	62179775990.3692
2016	65514992356.8202
2017	71697647982.3251
2018	82359418654.8625
2019	85957334653.6245
2020	61761199995.103
2021	76867880256.8544
2022	86442186391.7346
2023	97413797059.2159