Year	current US$
1990	79176634236.6684
1991	93936838178.7991
1992	95272988556.5501
1993	104753925357.185
1994	124504713558.826
1995	142478574410.641
1996	140022962449.965
1997	124678479418.278
1998	77562664719.7719
1999	94539644908.1363
2000	103117346719.255
2001	86140238103.4433
2002	101403664918.135
2003	125140777625.17
2004	163457237229.944
2005	175148655397.785
2006	191400142693.533
2007	223725193582.669
2008	186533947301.024
2009	157859583244.95
2010	222001696277.495
2011	234097125916.938
2012	232584184893.584
2013	260151798774.998
2014	285205874517.916
2015	303923858344.812
2016	311911611636.308
2017	334538881244.7
2018	329860646817.18
2019	282601899955.084
2020	292529123140.563
2021	324361729778.03