Year	1=low to 6=high
2005	2.95
2006	2.859375
2007	2.875
2008	2.90625
2009	2.9393939393939394
2010	2.909090909090909
2011	2.8636363636363638
2012	2.7941176470588234
2013	2.7794117647058822
2014	2.787878787878788
2015	2.8181818181818183
2016	2.8636363636363638
2017	2.823529411764706
2018	2.8333333333333335
2019	2.8088235294117645
2020	2.838235294117647
2021	2.893939393939394
2022	2.8823529411764706
2023	2.926470588235294