Year	years
2004	9
2005	9
2006	9
2007	9
2008	9
2009	9
2010	13
2011	13
2012	13
2013	13
2014	13
2015	13
2016	13
2017	13
2018	13
2019	13
2020	13
2021	13
2022	13
2023	13