Year	current US$
1986	620341457.6288977
1987	645766103.6058381
1988	640721931.6785188
1989	756205480.4499907
1990	828699105.1609699
1991	914493654.1059811
1992	817036636.463596
1993	869566348.2971104
1994	769732341.4471856
1995	780067626.7120161
1996	742652391.1308744
1997	740132957.2807354
1998	763846909.9778527
1999	749004850.2065264
2000	734578556.2005302
2001	808614946.1493701
2002	781148029.8480079
2003	894584048.7422423
2004	895267037.3925226
2005	1021679586.629624
2006	1005390515.5231853
2007	1479451796.1237807
2008	1507080730.5339878
2009	1512364187.9279504
2010	2079424654.589872
2011	2212106802.638264
2012	2531048956.9946136
2013	2217341683.3654885
2014	2342843828.7765255
2015	1890478290.5099807
2016	2524762071.6603775
2017	4611027664.184134
2018	4767367526.903489
2019	4710654157.748751
2020	6617433828.587106
2021	6917832412.835584
2022	9170403854.296415
2023	9247876842.874937