Year	1=low to 6=high
2005	3.6825396825396823
2006	3.7153846153846155
2007	3.7153846153846155
2008	3.723076923076923
2009	3.791044776119403
2010	3.7686567164179103
2011	3.753623188405797
2012	3.7464788732394365
2013	3.7777777777777777
2014	3.7916666666666665
2015	3.7569444444444446
2016	3.767605633802817
2017	3.75
2018	3.767605633802817
2019	3.732876712328767
2020	3.732876712328767
2021	3.7430555555555554
2022	3.72972972972973
2023	3.72972972972973