Year	current US$
1970	5500000.298023217
1971	4899999.618530283
1972	19610000.610351615
1973	2600000.075995928
1974	33970000.624656714
1975	14509999.930858582
1976	11660000.02622603
1977	-1279999.7702240911
1978	20199999.768286943
1979	36630000.323057175
1980	50479999.549686894
1981	192630003.03506863
1982	148159997.42224815
1983	85549998.99677932
1984	90969998.84769318
1985	105019999.24331896
1986	177979995.14266846
1987	172500002.7045608
1988	132049999.23147252
1989	115820000.32812347
1990	201070001.00798905
1991	305710002.43723404
1992	188630000.89675197
1993	279129999.190569
1994	200289997.87941566
1995	254709998.6597895
1996	235130000.28580418
1997	164780000.27313828
1998	155570001.0955334
1999	149919998.3179568
2000	96540000.0996888
2001	98689999.57479537
2002	152719997.90705732
2003	174240002.78674072
2004	262409998.7987428
2005	149949999.89867213
2006	255939998.00831088
2007	329750000.4079188
2008	189509997.33060607
2009	198049999.9560417
2010	625740000.0840433
2011	904860006.5708153
2012	1367920022.6739044
2013	763790009.4334027
2014	1111539998.7883859
2015	1038780011.3856796
2016	709050000.3416097
2017	582419992.9032488
2018	853890007.6430295
2019	547529987.759889
2020	1085629991.0824752
2021	1716010011.5574896
2022	728650018.2505689