Year	%
1999	0.32
2000	5.1
2001	7.06
2002	7.04
2003	5.05
2004	5.04
2005	5.04
2006	5.01
2007	5.17
2008	5.17
2009	5.17
2010	5.16
2011	5.17
2013	5.16
2015	5.12
2017	6.31
2018	6.36
2019	6.22
2020	6.24
2021	6.21