Year	current US$
1970	646724000000
1971	699937000000
1972	768153000000
1973	849575000000
1974	930161000000
1975	1030547000000
1976	1147666000000
1977	1273975000000
1978	1422252000000
1979	1585420000000
1980	1750667000000
1981	1933951000000
1982	2071256000000
1983	2281605000000
1984	2492340000000
1985	2712830000000
1986	2886278000000
1987	3076279000000
1988	3330012000000
1989	3576758000000
1990	3808994000000
1991	3943449000000
1992	4197559000000
1993	4451984000000
1994	4720965000000
1995	4962590000000
1996	5244596000000
1997	5536790000000
1998	5877248000000
1999	6283758000000
2000	6767179000000
2001	7073801000000
2002	7348941000000
2003	7740749000000
2004	8231960000000
2005	8769066000000
2006	9277236000000
2007	9746594000000
2008	10050083000000
2009	9891218000000
2010	10260256000000
2011	10698857000000
2012	11047363000000
2013	11388233000000
2014	11874450000000
2015	12297438000000
2016	12726849000000
2017	13290626000000
2018	13934442000000
2019	14417614000000
2020	14206231000000
2021	16042964000000
2022	17511745000000