Year	1=low to 6=high
2005	2.847826086956522
2006	2.72
2007	2.7
2008	2.7
2009	2.730769230769231
2010	2.6923076923076925
2011	2.6964285714285716
2012	2.7
2013	2.725806451612903
2014	2.7096774193548385
2015	2.7096774193548385
2016	2.693548387096774
2017	2.625
2018	2.6451612903225805
2019	2.59375
2020	2.59375
2021	2.629032258064516
2022	2.625
2023	2.59375