Year	1=low to 6=high
2005	3.809090909090909
2006	3.8214285714285716
2007	3.8679245283018866
2008	3.9056603773584904
2009	3.9722222222222223
2010	3.9537037037037037
2011	3.9454545454545453
2012	3.9642857142857144
2013	3.982456140350877
2014	3.951923076923077
2015	3.9134615384615383
2016	3.9285714285714284
2017	3.938775510204082
2018	3.9183673469387754
2019	3.92
2020	3.8854166666666665
2021	3.875
2022	3.857142857142857
2023	3.8469387755102042