Year	current international $
2000	20.6818507648964
2001	22.6774409916609
2002	23.6592241950118
2003	24.2290958640595
2004	24.0406679868943
2005	26.2152488855901
2006	27.5798018061215
2007	31.6964489484504
2008	33.3632959564672
2009	36.245555500024
2010	41.1948624948419
2011	44.2880258266316
2012	46.6842783347158
2013	52.2847175694752
2014	62.8716258142271
2015	72.4104829158599
2016	81.9375809262798
2017	73.8182167625555
2018	80.7813174406653
2019	96.3256039423562
2020	104.845643336005
2021	115.49057383359