Year	1=low to 6=high
2005	3.25
2006	3.176470588235294
2007	3.2058823529411766
2008	3.2058823529411766
2009	3.235294117647059
2010	3.264705882352941
2011	3.1578947368421053
2012	3.175
2013	3.175
2014	3.175
2015	3.15
2016	3.125
2017	3.125
2018	3.15
2019	3.2
2020	3.2857142857142856
2021	3.238095238095238
2022	3.261904761904762
2023	3.261904761904762