Year	constant 2015 US$
1965	3947968801.922843
1966	4058087963.3549633
1967	4345706003.657514
1968	4618781201.80749
1969	4782499309.052387
1970	4946661957.164514
1971	4987051684.155857
1972	5376850653.148671
1973	5503989384.943248
1974	5809325560.349223
1975	6145208054.234175
1976	6332804364.761259
1977	6539769962.653267
1978	7070488435.066191
1979	7413039044.147931
1980	7577138186.473985
1981	7819794077.71713
1982	7671698412.082204
1983	7887173795.520165
1984	8025553064.579593
1985	8157708759.309462
1986	8433070168.311106
1987	8971472849.956873
1988	9219907774.662348
1989	9616247847.279808
1990	10176496544.500381
1991	10528774189.589764
1992	10661308193.800829
1993	10843541478.09684
1994	11118964520.379513
1995	11534037322.746456
1996	11391561242.429153
1997	11465617277.030249
1998	11470064347.031027
1999	11464604863.812445
2000	11905920484.440964
2001	12116374689.07184
2002	12667764704.985899
2003	13059209525.307547
2004	13448023668.253672
2005	13826410926.979187
2006	14121109811.91414
2007	14676223305.566368
2008	14558051970.518192
2009	14524132420.643253
2010	14568264308.114946
2011	14846550507.626543
2012	15218206650.879906
2013	16352505576.805286
2014	16828473454.082657
2015	17552090518.081356
2016	18032435111.471622
2017	19037985638.409332
2018	19341437955.570076
2019	19867008615.460262
2020	20256536349.507946
2021	21139538825.284584
2022	20964105454.42603
2023	21333899270.652683