Year	1=low to 6=high
2005	3.375
2006	3.3125
2007	3.3125
2008	3.25
2009	3.25
2010	3.1875
2011	3.25
2012	3.1875
2013	3.1875
2014	3.1875
2015	3.1875
2016	3.2857142857142856
2017	3.2857142857142856
2018	3.2142857142857144
2019	3.2142857142857144
2020	3.142857142857143
2021	3.142857142857143
2022	3.142857142857143
2023	3
