Year	%
2002	14.17
2003	13.8
2004	13.89
2005	13.92
2006	13.87
2007	13.98
2008	13.94
2009	13.93
2012	7.87
2015	7.84
2016	7.84
2017	7.81
2020	7.81
2021	7.81