Year	constant 2015 US$
1970	16753582522.19033
1971	17654981090.00475
1972	19426695853.52261
1973	21058538141.58916
1974	22663960464.817154
1975	22660852021.782978
1976	23774193302.17404
1977	24979372068.093174
1978	27103442305.218517
1979	29271635607.392525
1980	28196255563.655117
1981	31871709532.181347
1982	34481018738.476105
1983	37487216071.35206
1984	34917030744.82232
1985	35365504052.1419
1986	40701783285.450935
1987	44325458084.98784
1988	46400060031.73112
1989	46655015908.40879
1990	49439656018.18111
1991	53023645555.50799
1992	57042984091.591354
1993	61153128939.58245
1994	66998761116.59031
1995	72653530723.38248
1996	76942159684.40474
1997	80037596501.0078
1998	84675159126.96724
1999	88289924617.29784
2000	95618032502.89452
2001	99343502251.19005
2002	100887558681.01724
2003	101138667724.36871
2004	106422111401.74104
2005	110071580978.51733
2006	115763855666.56674
2007	124433156125.38069
2008	127124844474.93689
2009	128467549847.77682
2010	134669076626.21687
2011	140438488401.01212
2012	144182985721.02414
2013	148901849749.1533
2014	154789473693.238
2015	160487784914.88373
2016	170323952231.89413
2017	176372888212.34094
2018	182661199005.1886
2019	189981784829.1241
2020	175919865185.88412
2021	196087054585.99564
2022	210622458385.14664
2023	209078595943.57037