Year	current US$
1984	17600000
1985	21700000
1986	26950000
1987	35000000
1988	50600000
1989	60650000
1990	82700000
1991	89400000
1992	107900000
1993	115500000
1994	108884500
1995	117156000
1996	124975000
1997	124190000
1998	121650000
1999	138705801.44
2000	143985394.04125
2001	148303558.36202598
2002	169134709.856628
2003	199443283.59334
2004	226257921.78738
2005	289165967.948777
2006	343211733.555123
2007	370937809.74820095
2008	355593394.166718
2009	317468086.873916
2010	325323439.196006
2011	311059237.841994
2012	371373899.467848
2013	421489231.070618
2014	465066845.390698
2015	468157180.120912
2016	506701327.4182
2017	537596003.417122
2018	579890681.451978
2019	634022753.939682
2020	379617446.898771
2021	573749834.785371
2022	813422850.684893
2023	910650175.544545