Year	1=low to 6=high
2005	3.12
2006	3.0800000000000005
2007	3.08
2008	3.1
2009	3.14
2010	3.18
2011	3.0142857142857147
2012	3.0250000000000004
2013	3.0375000000000005
2014	3.0375000000000005
2015	3.0375000000000005
2016	3.0375000000000005
2017	3.0125000000000006
2018	3.0125
2019	3.0250000000000004
2020	3.1444444444444444
2021	3.166666666666666
2022	3.166666666666666
2023	3.1777777777777776