Year % 2000 7.8125 2001 7.8125 2002 7.8125 2003 7.8125 2004 5.26315789473684 2005 12.5 2006 12.5 2007 12.5 2008 12.5 2009 12.5 2010 12.5 2011 9.58904109589041 2012 10.958904109589 2013 10.958904109589 2014 10.958904109589 2015 10.958904109589 2016 10.958904109589 2017 9.85915492957746 2018 12.3287671232877 2019 12.3287671232877 2020 12.3287671232877 2021 10.958904109589 2022 10.958904109589 2023 10.958904109589