Year	%
2006	12
2007	20.4
2008	21.6
2009	21.6
2010	21.6
2011	22
2012	33.2
2013	33.2
2014	34
2015	34
2016	34
2017	34.4
2018	34.4
2019	37.6518218623482
2020	38.8
2021	39.2
2022	36.5546218487395
2023	34.8