Year	years
2003	2.5777777777777775
2004	2.5777777777777775
2005	2.55
2006	2.55
2007	2.55
2008	2.55
2009	2.55
2010	2.7199999999999998
2011	2.55
2012	2.55
2013	2.55
2014	2.55
2015	2.55
2016	2.55
2017	2.55
2018	2.55
2019	2.4699999999999998