Year % 1997 27.2727272727273 1998 23.5294117647059 1999 23.5294117647059 2000 23.5294117647059 2001 23.5294117647059 2002 29.4117647058824 2003 29.4117647058824 2004 29.4117647058824 2005 29.4117647058824 2006 29.4117647058824 2007 23.5294117647059 2008 23.5294117647059 2009 23.5294117647059 2010 23.5294117647059 2011 43.75 2012 43.75 2013 43.75 2014 43.75 2015 43.75 2016 21.2121212121212 2017 21.2121212121212 2018 21.2121212121212 2019 21.2121212121212 2020 24.2424242424242 2021 22.8571428571429 2022 22.8571428571429 2023 22.8571428571429