Year	current US$
1970	3220224607.8243065
1971	3594302908.042567
1972	4203069035.015425
1973	5152080387.570929
1974	5691417541.321298
1975	6102769605.451195
1976	6762781870.608477
1977	6914381290.580621
1978	8087305999.04733
1979	8877094497.443897
1980	9746524915.093832
1981	9646440666.520529
1982	11926032493.436766
1983	15129893722.344105
1984	18421497251.175014
1985	22787644565.90326
1986	2909130355.23937
1987	2976714019.0696135
1988	3476480303.12292
1989	3546079262.9506097
1990	3888320665.5228024
1991	4396178694.153499
1992	4789220416.706413
1993	4781166116.517895
1994	4932800406.929736
1995	5385704166.4334135
1996	5641243099.76661
1997	5516916163.094898
1998	5232118046.371303
1999	5046806782.547613
2000	4367458866.715374
2001	4125527603.22908
2002	4301608752.513958
2003	5025167975.263627
2004	5300767960.515724
2005	4282468636.9050093
2006	4220019242.7288175
2007	6281917649.940332
2008	6964179187.855786
2009	6716904516.979529
2010	6853467832.494075
2011	6785137215.557362
2012	7638045226.044156
2013	8376613880.84932
2014	8778473643.318516
2015	8794202394.290764
2016	8595955600.36601
2017	10324668271.10322
2018	11857030367.244081
2019	13442861496.412752
2020	14177835841.392267
2021	16091817842.13176
2022	20999229260.499454
2023	23612295818.096096