Year % 1997 17.1428571428571 1998 17.1428571428571 1999 17.1428571428571 2000 25.7142857142857 2001 25.6756756756757 2002 25.6756756756757 2003 48.75 2004 48.75 2005 48.75 2006 48.75 2007 48.75 2008 56.25 2009 56.25 2010 56.25 2011 56.25 2012 56.25 2013 63.75 2014 63.75 2015 63.75 2016 63.75 2017 61.25 2018 61.25 2019 61.25 2020 61.25 2021 61.25 2022 61.25 2023 61.25