Year	current US$
1975	1717612.982
1976	2945085.049
1977	2655160.189
1978	1246556.401
1979	7489693.642
1980	11255760.19
1981	11797623.63
1982	16502719.88
1983	15740970.61
1984	23020278.93
1985	130917480.50000001
1986	128680984.5
1987	129935958.9
1988	162415481.6
1989	246620330.8
1990	158846364.984543
1991	207192768.823867
1992	392980838.618641
1993	498084557.863139
1994	490554745.242545
1995	645759195.858655
1996	754788474.486402
1997	833185834.774309
1998	1017174927.70668
1999	549865012.576593
2000	621628224.465715
2001	573849904.534938
2002	533009750.921658
2003	539217663.908889
2004	704875626.479077
2005	732686895.931947
2006	794233195.916735
2007	897282075.7731
2008	748880878.826067
2009	557286247.56766
2010	470665747.330446
2011	496948975.757572
2012	407460971.777293
2013	353454937.676884
2014	402801005.256774
2015	368030578.550162
2016	304127565.35778
2017	362587684.760722
2018	439830631.868132
2019	448985346.915579
2020	352806789.322835
2021	265498707.215008
2022	405133138.271106
2023	566533566.885678