Year	current international $
2000	595.152108936239
2001	579.283240587542
2002	526.049067008379
2003	494.464105606174
2004	479.212720663655
2005	464.969547632243
2006	522.29280936996
2007	566.214039211865
2008	582.446275202688
2009	576.071122660881
2010	650.207350611375
2011	687.330732163755
2012	621.320739859809
2013	603.834677566868
2014	582.050953336123
2015	584.270623516913
2016	662.6817017832
2017	700.206742272944
2018	775.818635918478
2019	731.195432817265
2020	408.949925866948
2021	320.57711664223