Year	constant 2015 US$
1970	29516183921.61833
1971	30483350746.427704
1972	31737737173.233173
1973	32684389104.694893
1974	34548384075.09958
1975	35922932966.98552
1976	37452815882.58474
1977	38849482913.94529
1978	39179202407.216774
1979	40613893554.85194
1980	41426548504.99998
1981	42209559489.736305
1982	43579009060.37693
1983	44378668286.03709
1984	44655812401.47341
1985	45285468733.49333
1986	46050102856.22224
1987	46082805748.67341
1988	46885817922.28903
1989	47660332257.30896
1990	48666293200.339035
1991	50128455887.146065
1992	51654750638.05701
1993	53637913949.992165
1994	55224005898.14333
1995	56674129260.57419
1996	57308748443.753876
1997	58864241135.89451
1998	60639228763.18748
1999	62615992404.76951
2000	62761127785.992165
2001	62543596688.65623
2002	63042111925.54295
2003	63684297986.6367
2004	64663554063.902336
2005	66125292916.78514
2006	68286435410.531235
2007	69241038111.36717
2008	71781500872.16014
2009	73544672187.16795
2010	73554979561.92186
2011	73606549721.07811
2012	73644395205.7773
2013	74202657711.82417
2014	74825882197.61714
2015	75483956483.30464
2016	76868917044.1562
2017	77471826348.92183
2018	78462022223.28902
2019	79477914416.20308
2020	79145038358.75777
2021	85106151551.60542
2022	85136929439.19136
2023	84758230499.36324