Year	current international $
2000	20.162139507917672
2001	21.547742226476952
2002	22.142957161383013
2003	23.583785413640452
2004	26.475359967055844
2005	26.581053827881437
2006	32.86980863809845
2007	36.86360170718506
2008	35.63320294115976
2009	45.63109115039115
2010	44.47506829059154
2011	48.665048755617974
2012	52.17769636649292
2013	56.83812059979903
2014	60.98134156107031
2015	64.20323603943038
2016	62.52605432198078
2017	61.81464784588464
2018	81.64179149802098
2019	78.74033763855942
2020	73.9926928479607
2021	77.1890390646294