Year	current international $
2000	22.424881834695583
2001	23.938357476345427
2002	34.87989248995776
2003	29.880527412910077
2004	48.12924662342552
2005	53.90092593541997
2006	47.30975466158676
2007	40.113598555320436
2008	48.14271448656901
2009	51.74373850451805
2010	46.9583377187069
2011	45.30479633257101
2012	48.375044098087386
2013	51.06204454262141
2014	52.729495257213095
2015	48.85294389757104
2016	47.58674941490706
2017	43.66877266766168
2018	50.70903216657747
2019	57.919433124186966
2020	56.97944163286485
2021	79.02246529806901