Year	current international $
2000	657.538110781615
2001	709.573746566522
2002	756.74403912865
2003	783.588744909992
2004	829.313562428434
2005	885.8225308682
2006	1089.77806626701
2007	1137.63787446736
2008	1174.31551473066
2009	1236.21454192388
2010	1290.93486965872
2011	1288.1466442656
2012	1311.9981436866
2013	1342.47674613081
2014	1374.14346307365
2015	1397.62644329311
2016	1546.02367721002
2017	1600.7391598648
2018	1654.07994667404
2019	1676.14963795332
2020	1624.30561577987
2021	1774.38819278151
2022	1848.57785282425