Year	current international $
2003	1.83644257337863
2004	1.95618655462009
2005	3.90226808871836
2006	8.40416314726735
2007	6.0527017128973
2008	5.48774197974104
2009	9.06864021345749
2010	6.0360281468875
2011	16.9087838485318
2012	9.56041984739025
2013	13.7969985543935
2014	9.52734151557809
2015	5.24689765557094
2016	6.24491382008424
2017	15.0179043926996
2018	13.1774240191657
2019	13.376927766666
2020	10.8152505999447
2021	13.255558238684