Year	current US$
1960	2050000000
1961	2363000000
1962	2356000000
1963	2805000000
1964	3053000000
1965	3005000000
1966	3171000000
1967	3478000000
1968	3526000000
1969	4220000000
1970	4770000000
1971	5213000000
1972	6461000000
1973	9559000000
1974	11016000000
1975	11948000000
1976	13193000000
1977	13367000000
1978	14416000000
1979	18663000000
1980	21944000000
1981	21477000000
1982	21360000000
1983	20113000000
1984	23111000000
1985	22604000000
1986	22569000000
1987	26621000000
1988	33233000000
1989	37125000000
1990	39752000000
1991	41854000000
1992	42824000000
1993	42723000000
1994	47528000000
1995	53111000000
1996	60301000000
1997	62910000000
1998	55893000000
1999	56080000000
2000	63870000000
2001	63387000000
2002	65033000000
2003	70377000000
2004	86565000000
2005	106097000000
2006	123437000000
2007	141358000000
2008	187257000000
2009	154331000000
2010	212634000000
2011	271733000000
2012	256675000000
2013	252981000000
2014	239975000000
2015	187684000000
2016	192505000000
2017	231131000000
2018	257098000000
2019	271005000000
2020	250823000000
2021	344864000000
2022	412683000000
2023	370866000000