Year	%
2003	40
2004	40
2006	40
2007	41.13
2008	41.05
2009	40.98
2010	40.9
2011	40.81
2012	40.8
2013	40.76
2015	40.01
2017	40.01
2018	40.01
2019	40.01
2020	40.01
2021	40.01