Year	scale 0 - 100
2004	82.38095238095238
2005	84.28571428571429
2006	81.9047619047619
2007	82.85714285714286
2008	83.80952380952381
2009	82.38095238095238
2010	79.52380952380952
2011	79.04761904761905
2012	79.52380952380952
2013	77.72727272727273
2014	76.81818181818181
2015	77.27272727272727
2016	76.36363636363636
2017	75.9090909090909
2018	70.9090909090909
2019	71.81818181818181
2020	69.0909090909091