Year	1=low to 6=high
2005	3.53125
2006	3.3529411764705883
2007	3.411764705882353
2008	3.3823529411764706
2009	3.3529411764705883
2010	3.3823529411764706
2011	3.210526315789474
2012	3.15
2013	3.175
2014	3.175
2015	3.125
2016	3.125
2017	3.05
2018	3.025
2019	2.95
2020	2.9523809523809526
2021	3
2022	3
2023	3