Year	0=less disclosure to 10=more disclosure
2005	3.823529411764706
2006	3.823529411764706
2007	4.294117647058823
2008	5.176470588235294
2009	5.588235294117647
2010	5.764705882352941
2011	6
2012	6.176470588235294
2013	6.235294117647059
2014	6.470588235294118
2015	7
2016	7.176470588235294
2017	7.235294117647059
2018	7.352941176470588
2019	7.705882352941177