Year	1=low to 6=high
2005	3.8846153846153846
2006	4.038461538461538
2007	4.3
2008	4.3
2009	4.15
2010	4.1
2011	4.111111111111111
2012	4.111111111111111
2013	4
2014	3.875
2015	3.75
2016	3.25
2017	3.25
2018	3.5
2019	3.5