Year	current US$
1960	188430759143.29535
1961	175242400382.39505
1962	174338230085.23212
1963	189868332729.45694
1964	219610041828.03577
1965	248402300067.2574
1966	269984272260.085
1967	275516605933.42755
1968	289729155248.27124
1969	324123836776.6859
1970	357422523963.9269
1971	386204672661.26764
1972	447677628542.532
1973	570653158284.115
1974	725385379576.1885
1975	832279847955.4089
1976	891446792792.3285
1977	997529620236.9452
1978	1054466935269.4532
1979	1294986236047.9807
1980	1543251636286.595
1981	1656334416230.4177
1982	1579333348388.4692
1983	1634808628486.049
1984	1738521213116.166
1985	1779296670200.69
1986	1773247334265.7432
1987	1755149545247.6804
1988	1885333149673.1313
1989	1991443637011.0857
1990	2274143623250.374
1991	2206315190948.629
1992	2387918190987.995
1993	2716970493207.136
1994	3051143259799.084
1995	3463004417326.8
1996	3833433678175.896
1997	4082565263734.9824
1998	4024152742748.9546
1999	3903551922192.618
2000	4268941472736.7085
2001	4273183740211.143
2002	4318218584882.7656
2003	4819379480453.263
2004	5679841882916.405
2005	6732228954467.744
2006	7980402189751.29
2007	9834012641439.639
2008	11914196103837.943
2009	11801519957377.299
2010	14382105634956.582
2011	17170196169223.578
2012	18396420637256.035
2013	19502852692265.24
2014	20356728301808.97
2015	19576389483746.73
2016	19641715663506.293
2017	21587742092223.58
2018	22972660547697.277
2019	23398540937291.605
2020	22655685554802.59
2021	26970300172155.06
2022	28170406597727.938
2023	28980945619440.484