Year	1=low to 6=high
2005	3.763888888888889
2006	3.810810810810811
2007	3.77027027027027
2008	3.7432432432432434
2009	3.75
2010	3.736842105263158
2011	3.6973684210526314
2012	3.6973684210526314
2013	3.736842105263158
2014	3.75
2015	3.75
2016	3.72972972972973
2017	3.6973684210526314
2018	3.77027027027027
2019	3.710526315789474
2020	3.736842105263158
2021	3.7432432432432434
2022	3.736842105263158
2023	3.723684210526316