Year	1=low to 6=high
2005	3.55
2006	3.45
2007	3.75
2008	3.875
2009	3.7777777777777777
2010	3.7777777777777777
2011	3.75
2012	3.75
2013	3.75
2014	3.3
2015	3.4
2016	3.5
2017	3.8
2018	3.6
2019	3.5
2020	3.375
2021	3.375
2022	3.375
2023	3.375