Year	1=low to 6=high
2005	3.789473684210526
2006	3.8157894736842106
2007	3.789473684210526
2008	3.789473684210526
2009	3.75
2010	3.75
2011	3.775
2012	3.775
2013	3.8
2014	3.8
2015	3.775
2016	3.775
2017	3.825
2018	3.825
2019	3.85
2020	3.875
2021	3.875
2022	3.925
2023	3.925
