Year	1=low to 6=high
2005	2
2006	2
2007	2
2008	2
2009	2
2010	2
2011	2
2012	2
2013	1.5
2014	1.5
2015	1.5
2016	1
2017	1
2018	1
2019	1
2020	1
2021	1
2022	1
2023	1
