Year	current US$
1970	336599899.3
1971	382303083.3904
1972	388043129.6715
1973	552299400.1026
1974	818589758.2926999
1975	1422186081.9225001
1976	1666693006.1912997
1977	3129618087.3611
1978	3983396947.9153
1979	4517426966.0702
1980	5955059840.0137005
1981	5979256499.732502
1982	6000256657.480397
1983	5923410963.528601
1984	4898559043.973201
1985	4335987106.2177
1986	4269542580.8196
1987	4428099633.454801
1988	4565311324.229198
1989	4571762104.173901
1990	5093359858.055225
1991	4563182803.13876
1992	4946271501.312318
1993	4902212082.905926
1994	5141631813.995762
1995	6684690536.2496195
1996	7125223330.60418
1997	7732448558.521596
1998	8438301315.884478
1999	6477090998.06752
2000	8230814243.023274
2001	9837799174.871431
2002	17122119999.555172
2003	20378721124.70602
2004	27902256841.84476
2005	32976936095.549866
2006	41779364068.756714
2007	54184296400.837524
2008	71258550023.20839
2009	65921933261.33387
2010	71257499114.70396
2011	78983393260.23619
2012	91612137795.48436
2013	104771962559.60306
2014	103764041896.12115
2015	89757997016.15002
2016	85703886336.2002
2017	105340313375.9462
2018	112702931341.02321
2019	116868427503.63194
2020	105912305583.5224
2021	113966323695.8092
2022	106448272579.03668