Year	scale 0 - 100
2004	68.57142857142857
2005	68.57142857142857
2006	66.19047619047619
2007	68.0952380952381
2008	66.19047619047619
2009	67.14285714285714
2010	69.52380952380952
2011	68.57142857142857
2012	67.14285714285714
2013	69.04761904761905
2014	71.9047619047619
2015	71.9047619047619
2016	70
2017	62.38095238095238
2018	64.76190476190476
2019	62.38095238095238
2020	63.333333333333336