Year	1=low to 6=high
2005	3.5625
2006	3.4705882352941178
2007	3.4705882352941178
2008	3.4411764705882355
2009	3.5294117647058822
2010	3.5588235294117645
2011	3.3947368421052633
2012	3.35
2013	3.35
2014	3.325
2015	3.275
2016	3.25
2017	3.25
2018	3.25
2019	3.275
2020	3.3333333333333335
2021	3.380952380952381
2022	3.357142857142857
2023	3.380952380952381