Year	current international $
2000	134.3638252019166
2001	145.102305432238
2002	160.74826944061434
2003	172.1391579107551
2004	186.25371875781383
2005	200.69325614422814
2006	231.86002991800265
2007	252.38048923364607
2008	286.5604189566891
2009	298.6380325550267
2010	305.6766733830418
2011	311.8024317676855
2012	332.66175557012366
2013	369.5096960806746
2014	379.62063700932043
2015	395.072207785958
2016	418.24987423834
2017	444.88637883286896
2018	461.05249340884876
2019	487.85123672113735
2020	486.79384779038844
2021	550.0218846728421