Year	0=less disclosure to 10=more disclosure
2005	4.026315789473684
2006	4.026315789473684
2007	4.026315789473684
2008	4.026315789473684
2009	4.078947368421052
2010	4.105263157894737
2011	4.2105263157894735
2012	4.421052631578948
2013	4.526315789473684
2014	4.7894736842105265
2015	4.921052631578948
2016	5
2017	5.026315789473684
2018	5.2368421052631575
2019	5.368421052631579