Year	0=less disclosure to 10=more disclosure
2005	4.078431372549019
2006	4.078431372549019
2007	4.137254901960785
2008	4.235294117647059
2009	4.352941176470588
2010	4.450980392156863
2011	4.490196078431373
2012	4.509803921568627
2013	4.568627450980392
2014	4.921568627450981
2015	5.03921568627451
2016	5.215686274509804
2017	5.294117647058823
2018	5.431372549019608
2019	5.588235294117647