Year	current international $
2010	189.67076770988
2011	168.258945834683
2012	162.588268496597
2013	179.456866650185
2014	208.45955771482
2015	194.987070269059
2016	196.284092824641
2017	143.922443528468
2018	111.07843608745
2019	72.0159647364546
2020	60.2153606832406
2021	63.1369666667997