Year	%
1995	2.78
1996	2.76
1997	2.76
1998	2.76
1999	2.76
2000	2.76
2001	2.76
2002	2.76
2003	2.76
2004	2.76
2005	2.76
2006	2.76
2007	7.2
2008	7.09
2009	7.01
2010	7.02
2011	7.04
2012	6.74
2013	6.67
2014	6.65
2015	2.72
2016	2.72
2017	2.73
2018	2.73
2019	2.73
2020	2.73
2021	2.73