Year	current US$
1990	2302343.80821793
1991	2561850.70182348
1992	2679188.22399459
1993	2944624.9350969
1994	3075174.02010902
1995	3363171.06953923
1996	3501806.51835731
1997	3807903.10847665
1998	4108595.96943081
1999	4615261.95192942
2000	4454786.70191833
2001	6016120.68389257
2002	6045828.81987053
2003	6303865.11442257
2004	7059979.32107362
2005	7677861.56223487
2006	8828564.33012321
2007	10558831.641989
2008	11540228.254167
2009	13532563.9858457
2010	12574426.6732883
2011	13422773.8239698
2012	14292222.5877921
2013	14223169.7848898
2014	17508792.9753794
2015	18429593.0505516
2016	19033122.7428107
2017	20205230.9261165
2018	21548310.5707711
2019	23651773.3695633
2020	24772442.3396622
2021	27740171.5278545