Year	current US$
1970	13656453408.632513
1971	15378808486.144232
1972	19174373567.958942
1973	24789169944.11095
1974	28750937241.09362
1975	34535416255.34715
1976	37271044932.079414
1977	44148557118.73945
1978	53701416677.34085
1979	63014397358.28288
1980	69389292316.18155
1981	58943367014.34159
1982	52571790570.36906
1983	50221719132.1499
1984	47097520245.74142
1985	49406353013.112305
1986	67707792125.699844
1987	83790191247.97408
1988	88925590784.42128
1989	89000890663.39067
1990	111243394495.41284
1991	115308238629.6515
1992	127096166875.78418
1993	120581092583.95522
1994	130551917048.46877
1995	152826628352.49042
1996	149313745928.33878
1997	133086265223.27469
1998	136805067792.84285
1999	134475835397.83813
2000	123871312985.5689
2001	124067975934.64581
2002	133161270908.51004
2003	162837438529.37222
2004	185499296377.7225
2005	193583805425.0583
2006	204326609990.11737
2007	233792452618.0792
2008	262411014129.99994
2009	248261368138.5545
2010	247633665315.0005
2011	269738239144.94217
2012	257720513409.49225
2013	273737745003.72626
2014	277391628015.09705
2015	237358203642.6952
2016	244179948744.51422
2017	258783748926.1181
2018	281309859485.09784
2019	275017720505.0976
2020	259818204392.99683
2021	293116165565.8868
2022	295771350565.1763
2023	324705401330.98615