Year	current US$
1974	966815177.028537
1975	1052165478.8512629
1976	1332744060.5267353
1977	1639747478.8882513
1978	1844746649.6630425
1979	2665369238.2543945
1980	4601608064.232901
1981	4066849308.8438826
1982	3809768577.469889
1983	3393672653.273704
1989	1845396865.4403672
1990	2175960382.514415
1991	2468235362.21817
1992	2421166297.414251
1993	2248434358.1564693
1994	2087801582.2511332
1995	2827057059.7054415
1996	3065868297.4466696
1997	2972105446.7721705
1998	2044691629.1926036
1999	2567616759.599211
2000	4042123467.847048
2001	3894125375.406801
2002	3922175732.217573
2003	4543571369.942193
2004	5416000504.074006
2005	6688049425.70793
2006	8227156211.117776
2007	8310386423.745706
2008	11269949130.906942
2009	7811523550.962519
2010	9239730724.182972
2011	12876089204.897318
2012	13364629507.661453
2013	12311715631.658789
2014	11656782737.71941
2015	6750982427.226198
2016	5651998520.28491
2017	6012333920.6353
2018	7045735066.375372
2019	7804888584.604084
2020	6886059825.919057
2021	11228855780.629213
2022	14411072071.915274
2023	11578413348.423027