Year	%
1997	26.2222222222222
1998	26.2222222222222
1999	26
2000	26
2001	26
2002	27.3092369477912
2003	27.3092369477912
2004	27.3092369477912
2005	27.3092369477912
2006	27.3092369477912
2007	25.7606490872211
2008	25.7606490872211
2009	25.7606490872211
2010	25.7606490872211
2011	24.4
2012	24.4
2013	24.4
2014	24.2971887550201
2015	24.2971887550201
2016	26.7206477732794
2017	26.7206477732794
2018	26.7206477732794
2019	26.7206477732794
2020	26.7206477732794
2021	30.2605210420842
2022	30.2605210420842
2023	30.2605210420842