Year	1=low to 6=high
2005	3.6
2006	3.6
2007	3.75
2008	3.75
2009	3.7777777777777777
2010	3.8333333333333335
2011	3.875
2012	3.875
2013	3.8125
2014	3.5
2015	3.5
2016	3.5
2017	3.5
2018	3.5
2019	3.6
2020	3.75
2021	3.625
2022	3.75
2023	3.75