Year	1=low to 6=high
2005	2.7222222222222223
2006	2.75
2007	2.7222222222222223
2008	2.7222222222222223
2009	2.75
2010	2.75
2011	2.75
2012	2.710526315789474
2013	2.6842105263157894
2014	2.7222222222222223
2015	2.7222222222222223
2016	2.75
2017	2.6578947368421053
2018	2.7222222222222223
2019	2.6052631578947367
2020	2.5789473684210527
2021	2.5526315789473686
2022	2.473684210526316
2023	2.473684210526316