Year	1=low to 6=high
2005	3.5
2006	3.5
2007	3.5
2008	3.5
2009	3.9
2010	3.8
2011	3.7857142857142856
2012	3.75
2013	3.75
2014	3.8125
2015	3.875
2016	3.875
2017	3.875
2018	3.8125
2019	3.75
2020	3.7222222222222223
2021	3.7777777777777777
2022	3.7777777777777777
2023	3.7777777777777777