Year	%
1995	25.63
1999	25.49
2000	25.49
2001	25.49
2003	26.64
2004	26.6
2005	26.59
2006	26.58
2007	26.63
2008	26.65
2009	26.65
2010	26.65
2011	26.62
2013	26.57
2014	26.56
2015	25.48
2021	25.55