Year	current US$
1960	2444121003.812477
1961	2241367538.854325
1962	2454092485.6956644
1963	2693408050.8921714
1964	3125505599.163643
1965	3227436302.8584514
1966	3085619671.6308913
1967	3344878200.5937743
1968	2683436569.0089836
1969	3144340620.498553
1970	3933195631.7018547
1971	4622335824.073278
1972	5321447498.32789
1973	6119166048.982914
1974	9490634867.931856
1975	13496954700.110422
1976	15695112484.1376
1977	19970662327.162235
1978	24561975763.154484
1979	23327727894.50213
1980	33928521078.76223
1981	38806791604.504
1982	32659926994.73445
1983	27326292129.660442
1984	24423482959.22133
1985	23595849962.91674
1986	18759681249.570656
1987	19482059714.88604
1988	21731182850.76062
1989	22751597830.140175
1990	25129242288.064735
1991	30174812120.957767
1992	30362054391.87541
1993	29177306283.872868
1994	28651643279.136772
1995	34603472681.99796
1996	36934848298.42294
1997	39152865289.780785
1998	34411866510.42431
1999	33779867096.333202
2000	33997555783.409027
2001	36869642009.66751
2002	33439791221.131794
2003	41092000000.000015
2004	52810000000.00002
2005	69593000000.00003
2006	83581000000.00003
2007	103899000000.00003
2008	134362000000.00005
2009	108527000000.00003
2010	128191000000.00003
2011	159155000000.00003
2012	156928000000.00003
2013	166366000000.00003
2014	175019000000
2015	148777000000
2016	139207000000
2017	143114000000
2018	165481000000
2019	171551000000
2020	140666000000
2021	198507000000
2022	215746999999.99997
2023	187515999999.99997