Year	current international $
2000	10.4186693801968
2001	15.3242512969805
2002	18.8717532056467
2003	20.7621899019392
2004	24.242418465387
2005	30.9574199939533
2006	31.8848343330056
2007	33.0461987592914
2008	37.8138843275039
2009	48.5637399112558
2010	53.1966741011176
2011	52.105159164762
2012	55.1597724420821
2013	67.277965191103
2014	72.8162311399618
2015	87.3719630872157
2016	99.772283089296
2017	100.888719350246
2018	107.080499969094
2019	106.520863190697
2020	99.3417718596873
2021	121.998019715572