Year	current US$
1960	180053390475.167
1961	168982532613.9726
1962	170141004179.8076
1963	186589422459.18436
1964	215160053105.50568
1965	242320370361.35077
1966	265398370224.87146
1967	272392719518.19086
1968	286844024984.08673
1969	320851329731.32275
1970	354005532449.1677
1971	382501022432.9586
1972	441122194935.6811
1973	563118008255.7114
1974	714216549854.4335
1975	818138330849.2136
1976	878819658267.7719
1977	984679233024.4257
1978	1041943786492.5197
1979	1280490232712.9026
1980	1539974154699.5237
1981	1661836364291.4465
1982	1593842541821.0923
1983	1644700879324.2378
1984	1749282912779.5635
1985	1784089666540.5247
1986	1778540224527.5452
1987	1763317594048.9644
1988	1899577323156.49
1989	2009481110611.3708
1990	2334186272700.923
1991	2258542206521.1274
1992	2440011207573.4956
1993	2768805973479.5527
1994	3116052898486.718
1995	3534597890931.416
1996	3909355749304.299
1997	4161876973657.951
1998	4108607605299.465
1999	3999785080973.844
2000	4372322368009.9097
2001	4374275436517.7407
2002	4406150082412.209
2003	4912292057325.603
2004	5795163605374.284
2005	6887893992464.025
2006	8120870119143.412
2007	9979459027920.695
2008	12067662380054.365
2009	11970996675669.04
2010	14630255984971.004
2011	17496066354586.074
2012	18674953139164.66
2013	19833760666069.465
2014	20590348415303.81
2015	19827996310186.035
2016	19905034053844.004
2017	21837271216675.93
2018	23304307154243.156
2019	23700366929893.344
2020	22969949394569.797
2021	27373038582479.266
2022	28567593041349.28
2023	29403677430761.246