Year 1=low to 6=high 2005 3.1 2006 3.09375 2007 3.109375 2008 3.0625 2009 3.121212121212121 2010 3.212121212121212 2011 3.303030303030303 2012 3.25 2013 3.25 2014 3.227272727272727 2015 3.227272727272727 2016 3.212121212121212 2017 3.2058823529411766 2018 3.287878787878788 2019 3.3088235294117645 2020 3.338235294117647 2021 3.3636363636363638 2022 3.411764705882353 2023 3.3823529411764706