Year	1=low to 6=high
2005	2.9565217391304346
2006	2.9
2007	2.9
2008	2.88
2009	2.8846153846153846
2010	2.9038461538461537
2011	2.892857142857143
2012	2.8666666666666667
2013	2.8548387096774195
2014	2.8870967741935485
2015	2.838709677419355
2016	2.7903225806451615
2017	2.765625
2018	2.8225806451612905
2019	2.828125
2020	2.875
2021	2.870967741935484
2022	2.828125
2023	2.828125