Year	1=low to 6=high
2005	3.65625
2006	3.588235294117647
2007	3.7058823529411766
2008	3.7941176470588234
2009	3.911764705882353
2010	3.911764705882353
2011	3.9210526315789473
2012	3.9
2013	3.9
2014	3.925
2015	3.9
2016	3.925
2017	3.9
2018	3.875
2019	3.825
2020	3.7857142857142856
2021	3.8095238095238093
2022	3.8095238095238093
2023	3.8333333333333335