Year	constant 2015 US$
1960	7628883053.338421
1961	8210452932.666892
1962	9906408153.48209
1963	12173249663.472126
1964	12717456064.89822
1965	13950220001.582947
1966	14189631475.086622
1967	14572444032.476742
1968	15336979320.81091
1969	16786467451.933731
1970	18379693268.16496
1971	20181231208.04666
1972	20374661855.854195
1973	20346056310.738384
1974	19585933881.785
1975	21477698228.436443
1976	23085650390.392994
1977	23875062147.99546
1978	25641554557.35598
1979	27246064805.592777
1980	28510269143.452106
1981	29710294904.482105
1982	32568442806.937935
1983	34025586953.221607
1984	36555427749.55969
1985	40408253369.912125
1986	44207428297.16594
1987	47829786860.17383
1988	50451272928.685425
1989	53147431280.29629
1990	54952481210.18283
1991	54860393480.38601
1992	56753891115.59149
1993	60122657435.55753
1994	60954551496.11479
1995	65711534414.86941
1996	68760741807.69191
1997	76498020910.10677
1998	85825162562.89134
1999	95932261766.0833
2000	97252158883.37836
2001	99540794704.79247
2002	99356396616.29062
2003	102114389630.10927
2004	106174245012.8942
2005	115541121227.82196
2006	120224465227.68921
2007	131555217925.12965
2008	146505175381.90753
2009	167294824579.31058
2010	176030770547.76224
2011	187526764021.6512
2012	188666975097.67856
2013	189744090617.07178
2014	204137346812.4043
2015	219368309510.089
2016	232690639768.90875
2017	260430088653.5166
2018	277878538130.83636
2019	288850968272.06384
2020	286627526589.35675
2021	286679714539.80707
2022	312499519869.04645
2023	321863025510.60596