Year	%
2007	3.97
2008	3.97
2009	3.97
2010	3.97
2011	3.98
2012	3.97
2013	3.04
2014	3
2015	2.96
2016	2.93
2017	2.9
2018	2.89
2019	2.88
2020	2.88
2021	2.88