Year	current US$
1970	94560000027.7562
1971	101262999953.67
1972	121784999945.431
1973	160352000006.918
1974	143620000060.034
1975	113891999990.534
1976	141894000078.343
1977	172504000038.399
1978	223748000009.508
1979	244065000112.921
1980	205805999995.559
1981	261763000109.732
1982	191449000089.996
1983	156646000089.611
1984	286100000185.92
1985	243326999797.952
1986	182844999948.813
1987	222056000080.435
1988	295856999821.798
1989	275756999989.758
1990	229917999718.545
1991	225951999816.861
1992	192646049764.088
1993	165435200005.146
1994	245309600337.659
1995	309903699666.959
1996	410100100349.079
1997	547563344994.866
1998	627683726476.526
1999	615490638467.51
2000	620810590289.705
2001	477651883314.256
2002	346538248460.074
2003	273338194504.839
2004	340301417870.771
2005	387521668823.855
2006	522980393397.843
2007	262261170612.757
2008	-140446346514.414
2009	-370350662222.488
2010	-88989117012.9409
2011	62132456466.2412
2012	446663645900.479
2013	522825797071.314
2014	727752094968.457
2015	774185361910.494
2016	563833225795.609
2017	698040071268.54
2018	773296109511.137
2019	796591981529.187
2020	511249064834.506
2021	388420071603.938