Year	%
2000	21.5
2001	21.5
2002	21.67
2003	21.94
2004	21.54
2005	21.94
2006	22.24
2008	21.72
2009	21.82
2010	21.44
2011	23.05
2012	12.31
2013	13.07
2014	13.94
2015	15.38
2016	14.77
2017	14.62
2018	14.26
2019	14.29
2020	14.31
2021	11.87