Year	constant 2015 US$
1960	2185069885.9094396
1961	2252523690.902614
1962	2294724567.984445
1963	2461517685.063924
1964	2629600034.967325
1965	2798723973.5910673
1966	2879954606.603851
1967	2982247095.7088447
1968	3118828775.790695
1969	3213254641.4714246
1970	3449708242.3554535
1971	3532067653.3726864
1972	3513891680.41136
1973	3729247620.8500385
1974	4123516229.8191805
1975	4064829740.606919
1976	4257124029.0966573
1977	4519675359.18232
1978	3716522266.8750687
1979	2697691266.5911384
1980	2997747386.5261755
1981	3118562315.922139
1982	3070920244.0436025
1983	3050842954.0964437
1984	2967195136.4829106
1985	2824377227.6355925
1986	2807176559.8574705
1987	2825539294.228041
1988	2515427312.95883
1989	2481140840.1466413
1990	2479194939.194917
1991	2549041057.51591
1992	2580425469.3487396
1993	2541593719.798967
1994	2574262331.2126956
1995	2668710422.822145
1996	2790579018.1217575
1997	2956281965.288514
1998	3105277856.7505155
1999	3282035214.9474406
2000	3412872563.314178
2001	3553125671.0707726
2002	3654708490.313433
2003	3794017487.1841035
2004	3971544059.6118703
2005	4100458979.7742553
2006	4264023701.199942
2007	4460983485.223752
2008	4727290366.988544
2009	4642698466.782218
2010	4883670222.494004
2011	5078316683.8888855
2012	5343683713.051447
2013	5600583659.017361
2014	5896086895.610484
2015	6196435384.931467
2016	6530245647.736986
2017	6832784536.785942
2018	6513122675.185127
2019	6300740742.526601
2020	6138894719.130494
2021	6459261019.659237
2022	6797009587.509847
2023	7132936544.35863