Year	%
1997	32.9608938547486
1998	37.4301675977654
1999	37.4301675977654
2000	37.4301675977654
2002	37.9888268156425
2003	37.9888268156425
2004	37.9888268156425
2005	36.8715083798883
2006	36.8715083798883
2007	37.9888268156425
2008	37.9888268156425
2009	37.9888268156425
2010	37.9888268156425
2011	39.1061452513966
2012	39.1061452513966
2013	39.1061452513966
2014	39.1061452513966
2015	37.4301675977654
2016	37.4301675977654
2017	37.4301675977654
2018	37.4301675977654
2019	39.1061452513966
2020	39.6648044692737
2021	39.6648044692737
2022	43.5754189944134
2023	43.5754189944134