Year	current international $
2000	3361.19598115836
2001	3590.5175538735
2002	3839.387583951
2003	3940.24445604965
2004	4122.48019910797
2005	4189.06550769798
2006	4447.4161177184
2007	4822.5061181795
2008	5165.47492207909
2009	5401.82138858187
2010	5435.07459721159
2011	5806.98719189608
2012	6061.95061773204
2013	6439.49330319046
2014	6652.95982515681
2015	7073.03928953074
2016	7442.94721005844
2017	7560.96969305991
2018	7641.88940605372
2019	8068.70041611335
2020	8337.79285001035
2021	8998.39083887971