Year	current US$
1990	35141037.0728
1991	89280496.9585481
1992	91762196.6718148
1993	80907075.5976624
1994	67653828.4423983
1995	71543820.9338345
1996	75766359.2153673
1997	80462648.2921587
1998	86280515.3580469
1999	85027325.9605458
2000	96705994.6541437
2001	100139299.125438
2002	103383671.017989
2003	109477120.605153
2004	112959669.137178
2005	116796555.649756
2006	124826088.89391
2007	157867413.995934
2008	171493152.969131
2009	194150868.996272
2010	200333487.126003
2011	203131314.210425
2012	213761937.512731
2013	244056670.842384
2014	277783744.894585
2015	294178049.673964
2016	326076910.154234
2017	343114744.021447
2018	375724176.695863
2019	384545235.363312
2020	398391396.02173
2021	440118724.136109