Year	scale 0 - 100
2004	62.5
2005	65
2006	66.875
2007	68.75
2008	70.625
2009	71.25
2010	73.75
2011	74.375
2012	76.25
2013	75.29411764705883
2014	75.29411764705883
2015	75.29411764705883
2016	75.88235294117646
2017	76.47058823529412
2018	79.41176470588235
2019	78.82352941176471
2020	80