Year	%
2005	27.3092369477912
2006	27.3092369477912
2007	27.6859504132231
2008	27.6859504132231
2009	27.3092369477912
2010	27.710843373494
2011	27.710843373494
2012	27.710843373494
2013	27.710843373494
2014	27.710843373494
2015	27.710843373494
2016	27.710843373494
2017	27.710843373494
2019	27.8688524590164
2020	27.0161290322581
2021	27.0161290322581