Year	%
1997	100
1999	100
2000	99.95
2001	99.95
2002	99.95
2003	99.95
2004	99.95
2005	99.95
2006	99.95
2007	99.95
2008	99.97
2009	99.97
2010	99.97
2012	100
2013	100
2018	100
2019	100
2020	100
2021	100