Year	1=low to 6=high
2005	3.1538461538461537
2006	3.1538461538461537
2007	3.3
2008	3.25
2009	3.25
2010	3.3
2011	3.2777777777777777
2012	3.388888888888889
2013	3.388888888888889
2014	3.75
2015	3.75
2016	3.75
2017	3.75
2018	3.75
2019	3.75