Year	current US$
1970	6173028029.445073
1971	6726484796.817278
1972	7977069113.851448
1973	10286769877.081064
1974	12682123838.033716
1975	15573643122.676579
1976	16999099861.517155
1977	18021710196.25203
1978	19494246931.407944
1979	23455231262.402687
1980	27833917755.81766
1981	27168641499.035545
1982	27859874182.804985
1983	26802946199.82921
1984	27386228729.719036
1985	29092478894.85802
1986	38353272343.42013
1987	47762748545.92182
1988	55402985074.62686
1989	59821255369.267006
1990	70797698647.17773
1991	67947360682.25261
1992	60783116538.35944
1993	48060789008.01499
1994	54290267501.42288
1995	68380991285.403046
1996	68106393994.30495
1997	63576909861.41335
1998	65797730307.076096
1999	66068547780.30903
2000	60238010447.05895
2001	61596025128.346535
2002	67749411857.64718
2003	85231804388.62727
2004	97514478207.72226
2005	101699403405.44742
2006	108149749065.8822
2007	124536709901.56903
2008	140920435238.28122
2009	132187714468.35928
2010	131272464333.33359
2011	146517209922.1793
2012	139585865255.8594
2013	147033291885.4906
2014	149858873972.94064
2015	127753752278.12494
2016	130814916778.59955
2017	135901775210.58847
2018	146362778127.05872
2019	141144465670.588
2020	139066945049.02762
2021	151983312585.2689
2022	146332691803.5025
2023	157497588274.51257