Year	%
2000	28.292391261751217
2001	27.543531966244863
2002	27.412405341145327
2003	27.121626049227523
2004	27.45236071193773
2005	26.726084692205667
2006	26.293844513971965
2007	25.894775220197655
2008	25.743621103651503
2009	25.515127896951803
2010	25.455398058252424
2011	25.039224121143885
2012	24.751543645442414
2013	24.49527711231799
2014	24.49027896752785
2015	24.583159028913443
2016	24.51850456819772
2017	24.496695044431476
2018	24.765803068476785
2019	24.894291746503196