Year	current US$
1970	6360725181.64984
1971	7130231465.94853
1972	8900258551.34711
1973	12791900783.9724
1974	13857185925.9185
1975	12173582960.176
1976	14114884288.7524
1977	14291420022.2692
1978	14911473338.8092
1979	16177703424.4294
1980	16779969813.9271
1981	13387818492.4145
1982	11500343875.5797
1983	12037163675.664
1984	15389350297.959
1985	12385653265.4078
1986	18050687343.1601
1987	19912976309.6198
1988	23891053747.8632
1989	26965790231.0506
1990	28890950958.014
1991	28013956986.4724
1992	27936860064.4054
1993	27741230613.0379
1994	34774415286.5929
1995	47181516231.6267
1996	50878370706.2248
1997	50161057945.7362
1998	46116264894.8165
1999	51808116050.4557
2000	48984408601.0799
2001	41645262453.676
2002	36816570700.1346
2003	48855989424.628
2004	57723587510.6567
2005	63568703157.146
2006	80180068548.2277
2007	96331519177.4697
2008	81540150531.4979
2009	54047957225.5112
2010	74908188075.6457
2011	90577911020.5208
2012	75144332623.5043
2013	77710503780.9982
2014	83090950447.1455
2015	83479000214.5616
2016	85842815215.4661
2017	108913886952.264
2018	126225809526.27
2019	114944388363.773
2020	85572562597.9886
2021	116722432698.267