Year	current international $
2000	17.0259746240768
2001	68.1034480045855
2002	62.2751967759122
2003	65.795042374257
2004	78.2264411163203
2005	58.1304783259675
2006	43.9845805651321
2007	50.9102780176559
2008	47.3882301475841
2009	38.3963757467213
2010	34.3381345427755
2011	31.89559755845
2012	31.1911385087735
2013	44.5976071555317
2014	53.1410214852844
2015	63.5424441500884
2016	67.1282973293565
2017	68.7321454388276
2018	66.1193117305458
2019	57.2362411358768
2020	55.4839581812463
2021	46.4862637070053