Year	%
2007	30.87945
2008	30.87945
2009	30.87945
2010	26.92688
2011	30.80995
2012	23.92694
2013	27.97541
2014	28.92779
2015	29.43201
2016	28.31461
2017	28.85271
2018	22.75518
2019	26.72287
2020	28.86223
2021	28.86223