Year	current US$
1960	1398000000
1963	1790000000
1964	2022000000
1965	2220000000
1966	2477000000
1967	2607000000
1968	2866000000
1969	3189000000
1970	3554000000
1971	4271899999.9999995
1972	4736800000
1973	5233500000
1974	5777100000
1975	6472800000
1976	7490000000
1977	8238900000
1978	8887200000
1979	9667200000
1980	10755900000
1981	11898200000
1982	12541500000
1983	13299200000
1984	14063300000
1985	15057400000
1986	15786300000
1987	16942500000
1988	18298400000
1989	19114100000
1990	19827200000
1991	20460700000
1992	21520900000
1993	22818500000
1994	24429600000
1995	25923300000
1996	27831000000
1997	30010800000
1998	31980300000
1999	34008000000
2000	36132600000
2001	37590285000
2002	38844900000
2003	40973400000
2004	44255535000
2005	47065146000
2006	50148829000
2007	52086575000
2008	54553800000
2009	55122100000
2010	56783800000
2011	58154800000
2012	60897000000
2013	62477600000
2014	61899400000
2015	61640500000
2016	60979400000
2017	62453800000
2018	65157100000
2019	68758800000
2020	65469600000
2021	79852500000
2022	88639800000
2023	94265600000