Year	0=less disclosure to 10=more disclosure
2005	3.727272727272727
2006	3.8636363636363638
2007	3.8636363636363638
2008	3.8636363636363638
2009	3.8636363636363638
2010	3.8636363636363638
2011	3.8636363636363638
2012	3.909090909090909
2013	3.909090909090909
2014	3.9545454545454546
2015	4.090909090909091
2016	4.090909090909091
2017	4.2272727272727275
2018	4.2272727272727275
2019	4.2272727272727275