Year 1=low to 6=high 2005 3.789473684210526 2006 3.8157894736842106 2007 3.789473684210526 2008 3.789473684210526 2009 3.75 2010 3.75 2011 3.775 2012 3.775 2013 3.8 2014 3.8 2015 3.775 2016 3.775 2017 3.825 2018 3.825 2019 3.85 2020 3.875 2021 3.875 2022 3.925 2023 3.925