Year	1=low to 6=high
2005	3.3125
2006	3.1875
2007	3.1875
2008	3.1875
2009	3.125
2010	3.1875
2011	3.1875
2012	3.125
2013	3.125
2014	3.125
2015	3.1875
2016	3.2142857142857144
2017	3.2142857142857144
2018	3.2142857142857144
2019	3.2142857142857144
2020	3.2142857142857144
2021	3.0714285714285716
2022	3.0714285714285716
2023	2.9285714285714284