Year	0=less disclosure to 10=more disclosure
2005	4.352941176470588
2006	4.382352941176471
2007	4.490196078431373
2008	4.637254901960785
2009	4.754901960784314
2010	4.813725490196078
2011	4.872549019607843
2012	4.980392156862745
2013	5.009803921568627
2014	5.235294117647059
2015	5.382352941176471
2016	5.5
2017	5.578431372549019
2018	5.666666666666667
2019	5.803921568627451