Year	current US$
1960	27343311086.95851
1961	27747688560.243824
1962	27868178057.870872
1963	30834199931.105972
1964	33811956057.013115
1965	35746781311.36606
1966	37670901216.052666
1967	39247049995.043495
1968	42331604174.171875
1969	45931095073.36918
1970	50860948690.91085
1971	56348202724.538445
1972	67020036099.94457
1973	98976974575.28328
1974	160692655096.6043
1975	163812681404.17453
1976	187946689953.324
1977	210758048238.25607
1978	227461100691.5445
1979	306747656987.7132
1980	376569516042.00885
1981	354844511353.3174
1982	352935215622.4701
1983	360415003145.52435
1984	377067204710.3895
1985	365669071779.8084
1986	333409441587.45685
1987	403130511484.1828
1988	460395298888.9542
1989	498494164973.24713
1990	560812861547.9907
1991	571526551973.0718
1992	624100482707.0642
1993	666795047540.2618
1994	786865554393.0626
1995	929475393877.4294
1996	1022468547146.1919
1997	1122485568324.9902
1998	1091781136729.2375
1999	1162133663169.6978
2000	1384605038615.1865
2001	1358212950982.0615
2002	1483118111086.3472
2003	1755166237325.2952
2004	2233940674884.825
2005	2726641328940.827
2006	3300567550606.1914
2007	3990853658848.941
2008	4760928688980.179
2009	3920792072248.1216
2010	4992199832938.696
2011	6021762705804.663
2012	6285373964929.026
2013	6470744383380.503
2014	6517848945948.08
2015	5879384725682.448
2016	5675517320042.813
2017	6367619623250.481
2018	7012911487694.222
2019	6942304538321.087
2020	6448822062171.446
2021	8378720651672.329
2022	9403163811122.133
2023	9122968753755.896