Year	current international $
2000	14
2001	24
2002	20
2003	15
2004	15
2005	37
2006	42
2007	50
2008	32
2009	27
2010	25
2011	23
2012	25
2013	21
2014	16
2015	11
2016	20
2017	17
2018	16
2019	17
2020	19
2021	17