Year	constant 2015 US$
1970	45931280.416639395
1971	46992252.09839449
1972	47500634.472420886
1973	63614160.41013538
1974	73361847.82068028
1975	73406055.80896258
1976	73671297.41117638
1977	75461688.24462928
1978	79705581.29912888
1979	81407557.21059728
1980	75550102.11203396
1981	80412894.34752576
1982	84297824.91364045
1983	97370734.65613604
1984	101135112.45386994
1985	94806792.50686245
1986	118074748.91436395
1987	129130977.68917294
1988	139189049.93229896
1989	136834515.69945794
1990	140496544.58802295
1991	140619936.02097195
1992	150661406.85862795
1993	159710493.54753295
1994	169097840.28022796
1995	182986275.10530895
1996	164133296.58355695
1997	153553817.74902296
1998	152518676.75781295
1999	150483001.70898396
2000	154176498.41308594
2001	164860992.43164092
2002	170854995.72753894
2003	168186752.31933594
2004	167022430.41992193
2005	170003265.380859
2006	170376617.43164095
2007	176197158.81347695
2008	162724639.89257798
2009	168742553.71093798
2010	177933563.23242196
2011	177552490.23437497
2012	175228561.40136695
2013	181555099.487305
2014	179453475.95214802
2015	183222930.908203
2016	187151763.91601598
2017	194139633.178711
2018	205126403.80859402
2019	226373046.875
2020	219930511.47460902
2021	222376800.537109
2022	220874588.01269498
2023	227999999.99999994