Year	current international $
2000	201.811237759965
2001	179.789732250669
2002	191.104728678861
2003	171.724489629198
2004	107.833714923307
2005	104.789588942251
2006	105.2149935861
2007	98.3938476276786
2008	97.131871484788
2009	96.8425332498371
2010	92.8549066123605
2011	89.5504756917803
2012	86.7945591778512
2013	76.7329782490791
2014	57.2088873275852
2015	60.7724671594418
2016	61.3069874296226
2017	64.6422524929551
2018	68.9058035306421
2019	68.5800325204671
2020	80.3246170144521
2021	72.765359645247