Year	scale 0 - 100
2004	79.375
2005	81.875
2006	78.75
2007	79.375
2008	80.625
2009	79.375
2010	75.625
2011	75
2012	76.25
2013	75.29411764705883
2014	74.70588235294117
2015	75.88235294117646
2016	75.29411764705883
2017	74.70588235294117
2018	68.23529411764706
2019	69.41176470588235
2020	65.88235294117646