Year	1=low to 6=high
2005	2.8
2006	2.8
2007	2.9
2008	3.1
2009	3.1
2010	3.1
2011	2.857142857142857
2012	2.8125
2013	2.8125
2014	3.0625
2015	2.8125
2016	2.8125
2017	2.8125
2018	2.8125
2019	2.8125
2020	2.888888888888889
2021	2.888888888888889
2022	2.888888888888889
2023	2.8333333333333335