Year	current US$
1960	5986397605.440958
1961	6220197511.920996
1962	6633197346.721062
1963	7186197125.52115
1964	8073796770.481292
1965	8717796512.881395
1966	9486396205.441519
1967	10322195871.121653
1968	11439395424.24183
1969	12955594817.762074
1970	14659394136.242346
1971	16582379893.095383
1972	17163484991.381834
1973	22159810593.997627
1974	26789722095.08195
1975	30032129469.863747
1976	29074307268.576817
1977	31809007952.251987
1978	35986958996.739746
1979	43209033482.45832
1980	59286060957.79075
1981	65155387720.0799
1982	62764777826.077354
1983	71066331568.08185
1984	63642285482.658516
1985	48009691857.269455
1986	55701189305.00754
1987	75453590388.76088
1988	81559538115.33745
1989	83955058133.35
1990	103140275211.3093
1991	111309285612.10872
1992	121946806712.73003
1993	120606514773.81017
1994	126885029956.64636
1995	139496427682.28482
1996	133794616510.54613
1997	139902012234.4759
1998	126479174640.81078
1999	125543287845.58565
2000	124727205141.10724
2001	110964736634.06543
2002	102575598313.85765
2003	155190560255.20477
2004	206370800377.0458
2005	230348577868.605
2006	241342316905.6297
2007	264311668394.75314
2008	253251897085.93997
2009	263139376709.55948
2010	335408397245.7057
2011	371727716614.9851
2012	361082735270.8316
2013	332525759538.6624
2014	316434602633.6174
2015	286611792560.40845
2016	267244841333.07953
2017	313722760337.7175
2018	337666835298.9128
2019	325763900693.1343
2020	281101902345.2369
2021	341012318950.31476
2022	334968697737.7456
2023	318987375207.6124