Year	current US$
1995	69499661.3787445
1996	89600207.5601928
1997	85801084.2580199
1998	101601919.397647
1999	92668897.7533349
2000	113047175.64761
2001	98330197.784134
2002	117391173.137997
2003	89607067.3768614
2004	54838730.4103666
2005	49953309.0358174
2006	46622757.9357199
2007	48479465.9772571
2008	39986224.5220158
2009	55718614.2195801
2010	55763850.8999963
2011	75062413.2091201
2012	76796329.9889957
2013	84343095.8002683
2014	114124949.546814
2015	135114898.29569
2016	156984836.357184
2017	203718873.504125
2018	203528219.216567
2019	397158244.634291
2020	451912609.039125
2021	497434120.418255