Year	current US$
1992	2144234.415169581
1993	24086494.15462091
1994	240562589.59429556
1995	525506810.71528995
1996	750624542.0451677
1997	756134800.950194
1998	1128780841.412955
1999	1049646356.8960264
2000	1518592486.8579874
2001	1684720276.6670678
2002	1841159624.4434304
2003	2184365072.4625072
2004	2509041355.527749
2005	3380777958.297134
2006	4244941341.135666
2007	5845107717.251477
2008	8006878107.6532
2009	6340308257.560908
2010	5466761296.764374
2011	6234406823.423952
2012	6145089405.982055
2013	6268061701.799717
2014	7545578459.605637
2015	7065934223.918164
2016	8421782804.652686
2017	11760601635.020838
2018	14439549958.338362
2019	16237514794.577356
2020	15517721941.728628
2021	18530585481.213882
2022	20909133720.672802