Year	current international $
2000	24.8124830452556
2001	23.4147260838424
2002	28.0000052733959
2003	21.012402840301
2004	19.6364193907119
2005	11.0881802796648
2006	10.6761922572297
2007	16.2527029905441
2008	15.8679676887973
2009	12.1395131395753
2010	13.2818547543216
2011	12.5565072182848
2012	13.2283984807762
2013	11.6949711442363
2014	10.2016014881904
2015	11.7764525377767
2016	12.5189789134299
2017	15.5604076919045
2018	11.3580260662134
2019	14.4093009858299
2020	15.1883226782119
2021	16.9086634086057
