Year	current international $
2000	2
2001	1
2002	1
2003	3
2004	2
2005	1
2006	3
2007	4
2008	3
2009	4
2010	5
2011	5
2012	8
2013	4
2014	6
2015	5
2016	3
2017	3
2018	3
2019	2
2020	2
2021	3