Year	current international $
2000	429.400617753325
2001	484.149475521041
2002	477.705030208532
2003	532.311557325823
2004	494.346752749299
2005	441.608128060749
2006	498.635952415796
2007	536.370615780096
2008	735.504608935372
2009	793.515441306559
2010	869.016764336995
2011	958.021400444321
2012	1026.31545325732
2013	1123.7560804698
2014	1203.55908739854
2015	1249.16951252893
2016	1358.48914295424
2017	1412.56272949173
2018	1479.11030520087
2019	1515.84689790067
2020	1506.58827171599
2021	1736.3366396824