Year	current US$
1970	87000000
1971	85400000.095
1972	93279988.05
1973	113940000.057
1974	177649904.26
1975	246278686.53
1976	297612864.494
1977	1487125781.031
1978	1816062928.7301998
1979	1956793057.6141
1980	2584898446.0690002
1981	2968727403.2793994
1982	3147079529.3266
1983	3133670488.2353
1984	2225719728.1598
1985	1846832541.2342
1986	1392443489.8639002
1987	1293352397.5630999
1988	1375746654.3772998
1989	1434308773.7561
1990	1804274484.0749085
1991	1771399456.634833
1992	1952289725.1615353
1993	1647711185.0309381
1994	1312851390.3773413
1995	748971118.7125468
1996	878322570.0152287
1997	706730941.4245191
1998	777631842.5866312
1999	817500043.2929417
2000	1269323553.990275
2001	1474003972.689323
2002	4159228615.3302474
2003	5544268971.727106
2004	6261590415.217027
2005	6390364412.786775
2006	6974390575.666134
2007	6320578379.853872
2008	8821339151.509996
2009	10954161860.432598
2010	10837693038.191536
2011	10133335479.684336
2012	12160409570.00096
2013	15387154893.620981
2014	11657231609.67511
2015	10549999414.600805
2016	10075464638.357197
2017	9333609243.10464
2018	10369215017.524748
2019	10248818359.17679
2020	8993535728.089632
2021	8134330344.442566
2022	7169046268.278016