Year	constant 2015 US$
1970	9394997894.661713
1971	9966634469.09218
1972	10387717910.85507
1973	10987637078.38046
1974	11005292757.008976
1975	11157865203.137491
1976	11465824929.59804
1977	11267379673.006634
1978	12064023242.63007
1979	12066141302.738274
1980	12736193889.59296
1981	12898010797.126163
1982	13032019983.08163
1983	12992936281.996475
1984	13301430793.670303
1985	13411545510.013273
1986	14560337375.992178
1987	15728569017.327724
1988	16939360463.634756
1989	17986201409.11991
1990	18825651095.576553
1991	20406324182.76991
1992	19581632127.271473
1993	20464098738.010536
1994	20966477298.78241
1995	21125289645.407803
1996	21551314857.585537
1997	22836662241.603897
1998	24104270733.52694
1999	26170923780.96874
2000	27290143799.873814
2001	28066472188.469906
2002	28660542004.035923
2003	29734507211.158188
2004	30532756245.934357
2005	31051564473.590607
2006	31518023664.041386
2007	32851637077.827713
2008	34402121428.78006
2009	32753508429.242165
2010	35251878489.9906
2011	36665079482.44724
2012	37375749117.201935
2013	37975987824.43983
2014	39665622844.082794
2015	40524938358.84607
2016	40987976921.05505
2017	42804617881.287865
2018	42943209355.48161
2019	45052059397.17966
2020	43234757167.26403
2021	47968680313.28121
2022	47506442819.37926
2023	48651167211.101135