Year	current US$
1965	195869652.56567577
1966	201075799.7455023
1967	207722786.40661117
1968	222164144.6982743
1969	235804982.87405688
1970	300647848.2912442
1971	332296232.29790473
1972	373768532.9235751
1973	546908546.9257609
1974	596581669.9491677
1975	858091119.1066893
1976	1034523938.2514104
1977	1618367406.9887593
1978	2343391347.33749
1979	2477886010.9787416
1980	2478233178.3120236
1981	2054970104.2521567
1982	1639347955.4389367
1983	1211863483.4199708
1984	887044462.2076094
1985	821345224.4893821
1986	1082280106.896474
1987	1187286514.577218
1988	1177791166.5135727
1989	1006723049.5467454
1990	917878532.2764543
1991	899658950.2173448
1992	948272653.1450062
1993	1032277606.1451256
1994	960150406.9410825
1995	1505493564.1527998
1996	3468487667.823218
1997	3253552725.9086676
1998	3571912510.4759626
1999	3635748504.2612534
2000	2712427376.7485437
2001	2578865528.73126
2002	2791002554.287465
2003	2729543619.840106
2004	3172359880.730165
2005	3302065398.4392085
2006	3600993290.8631735
2007	4802114704.756342
2008	5492656978.253507
2009	5458542360.053374
2010	7232924619.485583
2011	6548748300.859767
2012	6212148642.644017
2013	8864710889.91961
2014	10977988217.005304
2015	10794779639.153893
2016	11277314677.485802
2017	11505937027.340162
2018	13147981942.842815
2019	13390902075.431717
2020	12822867366.276566
2021	15328497382.042933
2022	17678277172.638317
2023	20069720105.347214