Year	current international $
2000	273.123774115848
2001	304.652347802386
2002	327.647196377427
2003	393.221366868752
2004	409.266612246087
2005	428.984966300387
2006	449.422492447883
2007	466.895237101074
2008	464.772595061602
2009	481.635707782227
2010	441.709022112059
2011	436.123235969244
2012	462.174245035312
2013	472.900025643118
2014	486.980047983542
2015	507.743058990479
2016	530.63819652255
2017	540.790287135631
2018	554.521140433777
2019	560.080880654905
2020	542.768784975269
2021	592.568780907967