Year	1=low to 6=high
2005	3.5625
2006	3.625
2007	3.625
2008	3.5625
2009	3.5625
2010	3.5625
2011	3.5625
2012	3.4375
2013	3.25
2014	3.25
2015	3.3125
2016	3.2142857142857144
2017	3.2857142857142856
2018	3.2142857142857144
2019	3.2142857142857144
2020	3.2857142857142856
2021	3.357142857142857
2022	3.357142857142857
2023	3.2857142857142856