Year	current international $
2000	368.349642783034
2001	383.396146793618
2002	416.33664454473
2003	508.362439729518
2004	568.750321611202
2005	647.35486808034
2006	713.074216716397
2007	859.033232777765
2008	1026.5609391591
2009	1069.18186451258
2010	1044.99832778732
2011	1104.39939902466
2012	1188.55328684893
2013	1282.05583375346
2014	1370.92554119869
2015	1442.80177424918
2016	1561.46711749853
2017	1642.02496169554
2018	1796.73358011629
2019	1980.66233737207
2020	2303.40482592458
2021	2481.9784948412