Year	current US$
1995	254794746.437829
1996	315653066.426404
1997	353028215.868109
1998	224013270.468131
1999	234343127.92783
2000	74579482.9057026
2001	118204002.184399
2002	134533535.436551
2003	168359589.549923
2004	183668230.651298
2005	191938864.312396
2006	216598215.387279
2007	272484667.683054
2008	310078252.576887
2009	262835312.945753
2010	215692429.662445
2011	227386708.214377
2012	195899398.854004
2013	229231390.078114
2014	235283611.770516
2015	185022095.92808
2016	189678578.857582
2017	197286578.447941
2018	207645660.508926
2019	207667958.998885
2020	211595603.962879
2021	230688565.823106