Year	1=low to 6=high
2005	4.115384615384615
2006	4.115384615384615
2007	4.3
2008	4.35
2009	4.35
2010	4.3
2011	4.222222222222222
2012	4.277777777777778
2013	4.333333333333333
2014	4.25
2015	4.125
2016	4.25
2017	4.25
2018	4.25
2019	4.25