Year	current US$
1987	600000.023841858
1988	31009999.692440044
1989	61999999.735504456
1990	123190000.3068149
1991	117580000.0112503
1992	134089996.6079743
1993	122709999.61905164
1994	149180001.9908696
1995	168949998.89843166
1996	245149997.8899953
1997	183419999.58083028
1998	206820002.91533753
1999	158830000.49740082
2000	125610002.59965657
2001	522330001.65224063
2002	236109999.96773908
2003	310520000.93832624
2004	462680002.6223061
2005	751560007.1921941
2006	325110004.45485115
2007	690840000.6145236
2008	999379997.1528357
2009	1256549993.9210715
2010	1087300013.7303026
2011	640759998.517111
2012	301189998.0790913
2013	433210001.58600545
2014	159110001.2585521
2015	94720000.15527001
2016	106950000.89891252
2017	189850001.51582056
2018	144050000.7178636
2019	170299999.4996935
2020	178070001.45874906
2021	248349994.74883088
2022	210469999.1177768