Year	1=low to 6=high
2005	3
2006	2.75
2007	2.75
2008	3
2009	2.75
2010	3
2011	2.75
2012	3
2013	3
2014	3
2015	2.75
2016	2.75
2017	2.5
2018	2.5
2019	2.5
2020	2.25
2021	2.25
2022	2.25
2023	2.25