Year	1=low to 6=high
2005	4.2
2006	4.35
2007	4.375
2008	4.25
2009	4.055555555555555
2010	4.055555555555555
2011	4.0625
2012	4.125
2013	4.125
2014	3.8
2015	3.8
2016	3.8
2017	3.8
2018	3.9
2019	4
2020	3.875
2021	3.875
2022	3.875
2023	4