Year	current US$
1993	460176991.1504425
1994	171586799.2766727
1995	90752699.55536735
1996	94165143.82402708
1997	18519275.94503613
1998	26401673.9095445
1999	7702990.486285256
2000	17146297.411198076
2001	79977548.19171466
2002	36632969.542348355
2003	17095565.477775123
2004	29066004.871893965
2005	12224989.868659971
2006	13703580.63647675
2007	52345937.51080252
2008	102747961.43672256
2009	-72126734.49347626
2010	-36287096.9340486
2011	40215323.339659184
2012	117862899.1064878
2013	60513413.176895425
2014	30176805.70207959
2015	494035728.99881667
2016	31688399.531629372
2017	-99195975.73821525
2018	145587193.48475727
2019	322054754.029934
2020	480006572.4066266
2021	259522409.44039404
2022	403061351.6814998