Year	current US$
1990	116874473.845824
1991	117386915.084719
1992	126298815.559662
1993	116038730.800947
1994	117035806.319218
1995	131754548.969188
1996	130841578.907222
1997	132419355.86625
1998	132836950.964111
1999	133199682.694637
2000	119305133.759087
2001	115964258.625607
2002	116423929.627183
2003	128554195.220299
2004	134186158.817005
2005	131835245.559281
2006	141004362.185344
2007	149192778.874937
2008	166615706.932191
2009	161824464.198591
2010	176022003.121314
2011	186094246.254734
2012	171810540.955885
2013	167566689.882857
2014	167493333.604902
2015	151537097.258805
2016	141855287.560824
2017	129832565.331949
2018	128008216.813272
2019	126392767.036673
2020	142055250.400279
2021	151641127.873554