Year	1=low to 6=high
2005	3.5
2006	3.5
2007	3.5
2008	3.5
2009	3.5625
2010	3.5
2011	3.5
2012	3.5
2013	3.5625
2014	3.5625
2015	3.5
2016	3.5
2017	3.5
2018	3.5
2019	3.4285714285714284
2020	3.357142857142857
2021	3.2857142857142856
2022	3.2142857142857144
2023	3.142857142857143