Year	1=low to 6=high
2005	3.40625
2006	3.264705882352941
2007	3.264705882352941
2008	3.3529411764705883
2009	3.3529411764705883
2010	3.3529411764705883
2011	3.3421052631578947
2012	3.35
2013	3.325
2014	3.325
2015	3.35
2016	3.375
2017	3.375
2018	3.425
2019	3.475
2020	3.4285714285714284
2021	3.4523809523809526
2022	3.4285714285714284
2023	3.4523809523809526