Year	current US$
1990	888806146.9394566
1991	1373041081.5457857
1992	1710610701.4286633
1993	2464831270.099233
1994	3518348204.0949945
1995	4272096711.792278
1996	4763168684.54881
1997	4641117245.859045
1998	4899309558.79831
1999	3984497069.9886723
2000	3629187396.3515754
2001	3666334991.708126
2002	3715422885.5721393
2003	3974129353.233831
2004	4732876357.8109455
2005	4726529113.631841
2006	4826633662.288557
2007	6079029860.431177
2008	7954825724.046434
2009	9926921235.820896
2010	9624889980.099503
2011	10235489220.563847
2012	11134986139.966831
2013	12663519741.956882
2014	11723412447.097843
2015	10844253756.550581
2016	11555313996.683252
2017	11344772173.79768
2018	11958444475.621891
2019	6997331984.5559845
2020	2568104004.3383946
2021	1239752813.2709486
2022	257193028.0456992
2023	152617929.01384163