Year	1=low to 6=high
2005	3.325
2006	3.3292682926829267
2007	3.3292682926829267
2008	3.3048780487804876
2009	3.3780487804878048
2010	3.475609756097561
2011	3.4761904761904763
2012	3.5
2013	3.453488372093023
2014	3.4878048780487805
2015	3.4878048780487805
2016	3.4342105263157894
2017	3.4473684210526314
2018	3.460526315789474
2019	3.448717948717949
2020	3.473684210526316
2021	3.5
2022	3.5128205128205128
2023	3.5256410256410255