Year	scale 0 - 100
2004	76.50793619047619
2005	78.49206333333333
2006	77.85714238095237
2007	78.49206309523808
2008	77.93650785714286
2009	78.37209325581397
2010	80.00000046511627
2011	81.08527093023255
2012	80.07751906976742
2013	78.97727272727273
2014	77.31060606060606
2015	80.9848840909091
2016	80.90912500000003
2017	81.43941136363638
2018	82.80305909090912
2019	81.6666931818182
2020	80.68184545454545