Year	0=less disclosure to 10=more disclosure
2005	5.409677419354838
2006	5.490322580645161
2007	5.490322580645161
2008	5.506451612903225
2009	5.538709677419354
2010	5.587096774193548
2011	5.699999999999999
2012	5.84516129032258
2013	5.990322580645161
2014	6.070967741935483
2015	6.070967741935483
2016	6.054838709677419
2017	6.070967741935483
2018	6.038095238095238
2019	6.085714285714285