Year	current US$
1995	-2721152360.0843
1996	-2420682043.28445
1997	-1103560716.78048
1998	-774659128.912375
1999	-742669034.972624
2000	-919901932.476133
2001	-662826660.319258
2002	-128881776.396056
2003	-930353752.755809
2004	404325265.997321
2005	2748264693.5526
2006	3780336841.30813
2007	7761559528.24401
2008	7898045477.14962
2009	1269014293.38165
2010	4969485026.12489
2011	6497627919.3814
2012	7563538815.93628
2013	8428561285.62183
2014	9175197117.12032
2015	8168387371.77469
2016	6286197613.7035
2017	6670041552.54406
2018	8476705605.28798
2019	6770053481.89574
2020	5164890635.33237
2021	5117325817.72237