Year	current US$
1970	34869999.118149295
1971	81080000.7618963
1972	-9579999.547451735
1973	44590000.71510674
1974	-2629999.935626975
1975	10690000.001341112
1976	54180000.29027468
1977	24909999.758005094
1978	3839999.7446686043
1979	3360000.059008604
1980	10689999.788999567
1981	18660000.007599592
1982	83120000.37357214
1983	102860000.31232837
1984	163460001.13338238
1985	202299998.48827726
1986	309609998.85946506
1987	478160002.2539495
1988	693330001.3728435
1989	752949994.5398426
1990	752580002.9765817
1991	1227880007.5408065
1992	1432409990.1448932
1993	975659996.3139739
1994	1131439970.2902877
1995	315520004.44568676
1996	343450001.9159166
1997	97119998.86669214
1998	80540000.56534998
1999	115699998.52404001
2000	208839996.6619904
2001	28490002.734586593
2002	28210001.965984743
2003	108469999.96528034
2004	99910002.39551058
2005	1052160021.9029931
2006	715609982.5650448
2007	689179996.5873357
2008	1118699986.0797079
2009	145190002.3724883
2010	180720002.64748928
2011	173619996.46387994
2012	82399999.34658405
2013	98890001.82412572
2014	140690000.49494213
2015	197859999.39590684
2016	197719997.89029366
2017	393439992.9326024
2018	216550001.28597033
2019	183789999.306202
2020	323540002.49877566
2021	274239999.47495747
2022	783589998.340234