Year	scale 0 - 100
2004	50
2005	49
2006	50.5
2007	51
2008	51.5
2009	51.904761904761905
2010	53.80952380952381
2011	53.80952380952381
2012	54.285714285714285
2013	55.23809523809524
2014	54.76190476190476
2015	54.76190476190476
2016	58.57142857142857
2017	56.19047619047619
2018	51.904761904761905
2019	56.666666666666664
2020	51.42857142857143