Year	years
2003	3
2004	3
2005	3
2006	3
2007	3
2008	3
2009	3
2010	3
2011	1.7
2012	1.7
2013	1.7
2014	1.7
2015	1.7
2016	1.7
2017	1.7
2018	1.7
2019	1.7