Year % 2001 100 2002 100 2003 100 2004 100 2005 100 2006 100 2007 99.95 2008 99.95 2009 99.95 2010 99.95 2011 99.95 2012 99.95 2013 100 2015 100 2016 100 2020 100 2021 100