Year	current international $
2000	0
2001	1
2002	1
2003	0
2004	0
2005	0
2006	1
2007	1
2008	2
2009	2
2010	4
2011	2
2012	5
2013	4
2014	3
2015	4
2016	4
2017	4
2018	2
2019	2
2020	4
2021	3