Year	current US$
1976	108319404810.70593
1977	123485936786.63646
1978	143831392576.1293
1979	199375992004.78604
1980	252734628432.70706
1981	248463519028.57462
1982	228596233802.2851
1983	232991570352.29633
1984	254932999389.5757
1985	257456965305.03223
1986	265652306577.59042
1987	327790327995.30005
1988	387291121598.369
1989	424123145924.14496
1990	432541044809.4401
1991	419748273516.1209
1992	729826469705.6132
1993	612351201041.2864
1994	646381161117.4602
1995	770787262690.6956
1996	811944358286.0365
1997	873853672967.3491
1998	858322228093.9388
1999	907056538107.5271
2000	1082745851584.5702
2001	1114281254598.4949
2002	1231204300265.001
2003	1517737741122.8457
2004	1953171570575.5283
2005	2404611921293.659
2006	2941316641452.2393
2007	3576795277336.972
2008	4334443523680.5815
2009	3497157749286.3
2010	4372626260086.9185
2011	5368869889738.112
2012	5644870478822.198
2013	5919043976339.071
2014	6033038600999.615
2015	5456133210704.245
2016	5220560703299.317
2017	5854590905749.127
2018	6517898262526.405
2019	6481889940682.734
2020	6225613272467.766
2021	7974208763580.764
2022	8773195068741.118
2023	8387410376296.13