Year	current international $
2000	183.02392155301
2001	196.974980320072
2002	205.320810410082
2003	210.840904524213
2004	215.457740121098
2005	231.057439337267
2006	317.520826989032
2007	337.382751344961
2008	371.749560414167
2009	400.170512455853
2010	414.835196010811
2011	431.223304755947
2012	433.308972767147
2013	453.863356539555
2014	462.547273120824
2015	456.032645827396
2016	474.461201083983
2017	491.423846726068
2018	496.48214681515
2019	531.0211874142
2020	518.01667519614
2021	564.974871798606