Year	current US$
1992	2207.3583538519697
1993	2377.94767894501
1994	2648.6294862930426
1995	3137.2986399023143
1996	3604.3641138611056
1997	3825.6840331176923
1998	3868.68885140989
1999	3912.8506355135646
2000	4090.9728460886927
2001	4170.604973842856
2002	4429.386787910325
2003	5187.405531355491
2004	6381.470961571502
2005	7734.120210461719
2006	8849.854744924716
2007	10322.246794363047
2008	12381.74953223192
2009	12752.749100795121
2010	12795.511572513866
2011	12977.595097916857
2012	13139.691812947452
2013	13390.18534793366
2014	13558.410499872634
2015	13251.117122473659
2016	12828.326195093006
2017	13069.075582917301
2018	14695.032819775255
2019	15931.589087923163
2020	15845.432304328273
2021	17650.214302969045
2022	19437.147845959207
2023	20342.122559721545