Year	current US$
1990	6907031.42465379
1991	6916996.89492339
1992	6697970.55998649
1993	7992553.39526301
1994	8054027.19552361
1995	8102184.8493445
1996	9709554.43726346
1997	10264782.2924153
1998	11469830.414661
1999	11538154.8798235
2000	12436279.5428553
2001	13002583.4135743
2002	14106933.1122324
2003	15969790.7882269
2004	17429324.8118848
2005	17682346.9157809
2006	18392841.6235575
2007	21117663.2839781
2008	23080456.5083341
2009	29826876.3286054
2010	39152192.4902514
2011	42058024.7669662
2012	58722391.2966466
2013	63681011.4431557
2014	72392130.6684703
2015	73370644.3442898
2016	75773375.7708874
2017	71466646.0388005
2018	76398555.8723009
2019	87674683.5575845
2020	92373511.4022047
2021	98289765.2137511