Year	current US$
1976	1213854601.2519472
1977	1623157925.6088216
1978	1894803915.535197
1979	2321140571.6555943
1980	2782022965.8619847
1981	3146690874.6271796
1982	3375508420.4680943
1983	2936039904.0452766
1984	3086684053.8248215
1985	3149576560.40943
1986	3306735558.5825343
1987	4270235856.0832357
1988	4613477028.76178
1989	4916768427.156275
1990	5551165389.649473
1991	5826827553.706801
1992	6404101984.261558
1993	6597227809.415536
1994	7178027895.759862
1995	8304038965.13948
1996	8902555975.108507
1997	9338220522.048708
1998	10210493697.155184
1999	10552359777.99775
2000	11453797829.088848
2001	11330399416.923784
2002	11684591633.436176
2003	13924293262.763544
2004	18161639721.553246
2005	20795663814.29954
2006	23347848994.941505
2007	27445702145.51614
2008	34089840523.609753
2009	30811969073.29206
2010	32956371025.56162
2011	37147262850.39764
2012	42859483716.81002
2013	47574582431.69393
2014	48421574676.87422
2015	45031350962.67669
2016	48202632091.47896
2017	53330830831.590096
2018	57426161274.22645
2019	62373963197.92867
2020	61291458435.50151
2021	73330997705.47626
2022	79776927013.297