Year	current US$
1995	65231987832.53325
1996	70095690868.04083
1997	71556659208.86798
1998	71529763717.0644
1999	72732027562.7589
2000	72869627093.00891
2001	68903208200.14061
2002	68743699330.59053
2003	72837883461.76819
2004	88536400406.868
2005	98733130098.22798
2006	106531593798.0971
2007	121345433739.74753
2008	134083019292.45773
2009	116605909688.61816
2010	132647778155.49709
2011	150753865760.33496
2012	157068576535.35855
2013	160847822436.02078
2014	166005392172.2347
2015	152672522413.78708
2016	154298472575.00473
2017	167926074245.33643
2018	180026333641.26166
2019	178903319125.75507