Year	constant 2015 US$
1964	6799968981.133544
1965	6965214506.876806
1966	7963830959.339483
1967	8216979195.792336
1968	8901931602.759914
1969	9728256111.879347
1970	9306779739.150145
1971	11376702644.905544
1972	13295544634.528755
1973	13750043306.683468
1974	14409256016.075045
1975	14632158636.78919
1976	14756999509.084911
1977	16205876961.28348
1978	17351664058.84927
1979	18667475212.232433
1980	19851460976.827484
1981	20615484006.70049
1982	20802249749.804195
1983	21212289032.32083
1984	21549237610.987186
1985	22486229242.8116
1986	24089128885.077393
1987	25491013048.102123
1988	26989502922.703568
1989	28513358141.69061
1990	29376063371.01912
1991	29671528558.0106
1992	29486564449.96409
1993	28983589067.43137
1994	30025702415.66629
1995	31836277781.62091
1996	33687534256.4014
1997	34017366505.24951
1998	35264806333.69296
1999	35936681609.85994
2000	36263249147.73638
2001	37602561861.0665
2002	37877551149.269325
2003	38921704591.746796
2004	40999485462.99992
2005	43752222548.87605
2006	46478887178.877144
2007	49581780006.07879
2008	49864517015.80094
2009	44918248850.115875
2010	49005599894.723045
2011	52763841288.70222
2012	54664875174.87627
2013	56324317859.302246
2014	59401932358.48976
2015	63195136105.88262
2016	72038861174.42285
2017	74384086274.98236
2018	78901510235.93668
2019	82861706388.95778
2020	82525941688.2864
2021	88831133504.37985
2022	93297691924.59123