Year	current US$
1990	55305425.252763
1991	45226417.0446047
1992	48197000.222006
1993	58492155.8185622
1994	61087908.9882955
1995	64801457.2131831
1996	63519665.2209519
1997	52006083.2950589
1998	48986409.2729863
1999	38701375.9675229
2000	37516158.5744408
2001	38472313.1202874
2002	48318889.4657935
2003	55218727.932583
2004	66381408.9706731
2005	87099532.0034713
2006	99624341.9911235
2007	113817318.87252
2008	150822438.164174
2009	137730539.930673
2010	158975394.993315
2011	168838043.715275
2012	150873673.918262
2013	168731712.806353
2014	167986130.206631
2015	113267984.597031
2016	91612400.9887139
2017	99423387.0372567
2018	108091357.767742
2019	113440984.221475
2020	109381032.074998
2021	120772503.440819