Year	%
1997	1.23456790123457
1998	1.23456790123457
2000	4.93827160493827
2001	4.93827160493827
2002	4.93827160493827
2003	7.40740740740741
2004	6.17283950617284
2005	7.40740740740741
2006	8.64197530864197
2007	11.1111111111111
2008	11.1111111111111
2009	11.1111111111111
2010	11.1111111111111
2011	11.1111111111111
2012	11.1111111111111
2013	15.3846153846154
2014	17.5824175824176
2015	17.5824175824176
2016	17.5824175824176
2017	17.5824175824176
2018	17.5824175824176
2019	16.4835164835165
2020	18.6813186813187
2021	18.6813186813187
2022	18.6813186813187
2023	19.7802197802198