Year	current international $
2000	12.5739551527277
2001	12.042246196575
2002	12.4583745527066
2003	11.0057175726023
2004	13.141885442442
2005	9.87220227277968
2006	11.0768886054169
2007	12.0772694119578
2008	17.2505709723338
2009	15.479767380188
2010	16.4539521238974
2011	17.5688259649827
2012	24.6257358620269
2013	12.4449839397781
2014	21.400348714661
2015	19.2919011069806
2016	23.2731231476858
2017	20.4665909211854
2018	19.4058627472722
2019	22.8472431447125
2020	27.1132358034431
2021	29.0176585164354