Year	current international $
2000	492.5263607463173
2001	541.1614684665541
2002	544.2785489632548
2003	544.2881964853578
2004	564.7327925241206
2005	574.5871175136234
2006	603.6853512336987
2007	640.1780641201893
2008	652.2866519323595
2009	789.2046198183425
2010	781.1464728838633
2011	803.992560032619
2012	827.2472881929054
2013	872.3158950305931
2014	936.9246751913397
2015	945.2741086061765
2016	1046.8931368116298
2017	1068.4983988855433
2018	1039.8056092488698
2019	1011.6553369436001
2020	1056.742002787323
2021	1090.5567268170598