Year	1=low to 6=high
2005	3.40625
2006	3.411764705882353
2007	3.4705882352941178
2008	3.4705882352941178
2009	3.588235294117647
2010	3.676470588235294
2011	3.5526315789473686
2012	3.5
2013	3.525
2014	3.55
2015	3.5
2016	3.5
2017	3.5
2018	3.525
2019	3.45
2020	3.4523809523809526
2021	3.357142857142857
2022	3.2857142857142856
2023	3.2857142857142856