Year	%
1999	100
2000	100
2001	100
2002	100
2003	100
2004	99.95
2005	99.95
2006	99.95
2007	99.97
2008	99.97
2009	99.97
2010	100
2011	99.97
2013	99.97
2015	100
2017	100
2018	100
2019	100
2020	100
2021	100