Year	constant 2015 US$
1968	44013596833.04218
1969	46532398021.62944
1970	49224625763.336784
1971	52241893707.447624
1972	56222547768.27692
1973	60125005089.202896
1974	63946297108.817665
1975	64821078765.19734
1976	67920977389.10504
1977	71218655806.81552
1978	77396236393.77023
1979	81927205192.58107
1980	85531663506.19252
1981	86980989343.25406
1982	86792036671.66638
1983	87587300150.77914
1984	89611341411.82458
1985	91784633515.57385
1986	96764759318.07007
1987	101662423486.44333
1988	106936373261.76878
1989	109042162441.35574
1990	115040887513.4506
1991	117987684615.56976
1992	123270767593.811
1993	131071554405.36375
1994	140059620337.46432
1995	147487281723.66995
1996	149921302299.4719
1997	154960371619.3225
1998	156606970444.77527
1999	150227608912.1039
2000	153776687087.614
2001	155938451708.41675
2002	159509374594.22064
2003	164589115098.5
2004	173209686639.5067
2005	183225497573.13174
2006	195310122146.32382
2007	207534105929.4835
2008	213326338773.20322
2009	216833362318.57773
2010	225235966852.6266
2011	238746285253.0714
2012	249135437698.41107
2013	262955798706.89456
2014	276696304405.0951
2015	289667485036.8379
2016	296323917502.1008
2017	298447143116.84576
2018	303614633932.8034
2019	314267785488.08905
2020	295528810526.7033
2021	325226054069.3099
2022	346612283942.79846
2023	354566631926.1183