Year	current US$
1990	275796553.026527
1991	261564956.656177
1992	184863987.455627
1993	141762657.589665
1994	95916142.0557812
1995	70320849.6358202
1996	91842834.5950986
1997	94204211.6836179
1998	103399665.230675
1999	85027325.9605458
2000	86682724.5748274
2001	77045158.4356565
2002	100159222.574334
2003	117462018.504198
2004	122667142.183056
2005	123311109.476665
2006	130466560.792889
2007	166623510.010317
2008	201551431.136128
2009	186694150.737185
2010	181471837.747392
2011	227292306.026824
2012	312564701.35261
2013	303212124.847485
2014	326943051.336125
2015	357116866.571243
2016	348342069.700246
2017	352843196.718948
2018	440760888.485265
2019	409828161.577715
2020	386812161.985736
2021	425946728.306067