Year	current US$
1970	48451507.9245283
1971	60272948.4327789
1972	68265954.4138779
1973	84609681.1139517
1974	92380033.241705
1975	119380909.043174
1976	147226867.14119
1977	201931274.434969
1978	230080200.67219
1979	217605882.10035
1980	323074290.898483
1981	144326350.705599
1982	114541500.159063
1983	109713637.768834
1984	141060203.284328
1985	123658137.885148
1986	140932845.09319
1987	144018983.74064
1988	132612726.850508
1989	155172024.559241
1990	237121726.774453
1991	231402688.975741
1992	284463836.212876
1993	309444529.126402
1994	343025547.729087
1995	377164329.020209
1996	439970351.768332
1997	626452071.897094
1998	704051846.354901
1999	752724772.515343
2000	680431088.651975
2001	730095442.788869
2002	659540262.120014
2003	671343637.916089
2004	709342698.626728
2005	816283463.348993
2006	989045587.535141
2007	1240884054.71081
2008	1510656002.399
2009	1844161106.37193
2010	2340755543.32367
2011	2743518816.49558
2012	3137315174.59453
2013	3473637598.25392
2014	3501426088.76712
2015	3763559618.49462
2016	3895001184.18963
2017	4090069233.85123
2018	4115755455.39578
2019	4294570093.80816
2020	4022198355.93137
2021	4123394817.86498