Year	current US$
1970	412782563611.4511
1971	451925643551.5201
1972	505345833481.7797
1973	647708151464.401
1974	783696088003.7878
1975	843494721030.0698
1976	906718096984.0734
1977	1023998375413.6649
1978	1097575382355.2828
1979	1263283286222.8906
1980	1471450544695.0215
1981	1626171670939.3208
1982	1613106893733.9895
1983	1582200802996.3875
1984	1619089196800.6282
1985	1681462956624.9504
1986	1774459100033.7095
1987	1786331918900.892
1988	1953583683344.012
1989	2092064924558.9841
1990	2428128058589.524
1991	2553237209438.8237
1992	2808293368594.998
1993	3080645186601.97
1994	3474547281772.6226
1995	3966898169850.961
1996	4396544050017.852
1997	4681497454347.936
1998	4576738218070.456
1999	4438184320260.1045
2000	4784090284207.489
2001	4843150555006.624
2002	4926591774034.275
2003	5509385753742.952
2004	6504389814983.901
2005	7704778761908.601
2006	9139763116075.61
2007	11421878525563.71
2008	13472605222903.924
2009	13272295211503.203
2010	15912151500530.867
2011	18436979182421.566
2012	19732437691567.285
2013	20748222596516.6
2014	21530927898262.55
2015	20330730304191.336
2016	20488366729352.09
2017	22642418311115.164
2018	23659825388648.543
2019	24161179090801.71
2020	23077771816799.65
2021	26761200673632.42