Year	current US$
1977	11954068454.760015
1978	13508428175.318838
1979	16928176747.986738
1980	18829449140.28881
1981	20019740187.639576
1982	18573053897.028156
1983	17755248050.562305
1984	19088887262.22648
1985	20266001546.36764
1986	21020894904.67344
1987	23388927688.837097
1988	26188283963.021023
1989	30586184199.624928
1990	34642054040.89994
1991	36373046049.42652
1992	40962206786.500755
1993	44679440515.7789
1994	49879888470.82955
1995	51685381682.91217
1996	55299294287.81127
1997	61874820957.27002
1998	56468968704.95587
1999	58587089800.99466
2000	64537257893.90603
2001	63402824822.86576
2002	65199003598.59292
2003	70710429943.60776
2004	79121930910.57402
2005	91551276177.31381
2006	101769774077.2291
2007	119123176055.59349
2008	136056363122.9943
2009	123540384597.56879
2010	137840389963.62607
2011	156741692874.09085
2012	167176679036.66052
2013	174027130057.8675
2014	183477684304.17734
2015	180566078622.00092
2016	187848465575.11313
2017	200778545859.06525
2018	209586298994.4296
2019	215682083256.8771
2020	137591913125.73196
2021	175500155070.84625
2022	241319881706.5121
2023	269725775874.78546