Year	current US$
1990	65071506.5796331
1991	61484416.8437634
1992	60683613.2734776
1993	45010695.4364811
1994	68825323.3072018
1995	68945006.9255542
1996	68603573.155091
1997	86753966.471381
1998	81658344.8924373
1999	94257849.8644046
2000	105615568.05798
2001	121292755.723641
2002	155377795.26528
2003	166632157.629436
2004	194811307.062017
2005	244295585.454584
2006	316356866.570106
2007	359515344.904102
2008	401224203.090451
2009	427518531.079674
2010	469254745.57622
2011	474867924.361205
2012	490906772.862381
2013	491992384.311411
2014	542772630.403165
2015	650599410.786458
2016	758811111.87192
2017	784262231.267627
2018	817268658.028599
2019	840861380.626106
2020	878192295.487792
2021	963332608.210333