Year	1=low to 6=high
2005	3.4375
2006	3.3823529411764706
2007	3.411764705882353
2008	3.4411764705882355
2009	3.5
2010	3.4705882352941178
2011	3.4473684210526314
2012	3.475
2013	3.5
2014	3.5
2015	3.5
2016	3.475
2017	3.45
2018	3.475
2019	3.525
2020	3.5476190476190474
2021	3.5714285714285716
2022	3.5714285714285716
2023	3.5714285714285716