Year	1=low to 6=high
2005	2.9342105263157894
2006	2.891025641025641
2007	2.9
2008	2.8933333333333335
2009	2.9025974025974026
2010	2.9025974025974026
2011	2.9294871794871793
2012	2.9
2013	2.882716049382716
2014	2.861842105263158
2015	2.888157894736842
2016	2.8904109589041096
2017	2.864864864864865
2018	2.8835616438356166
2019	2.8866666666666667
2020	2.863013698630137
2021	2.875
2022	2.8175675675675675
2023	2.831081081081081