Year	0=less disclosure to 10=more disclosure
2005	4.545454545454546
2006	4.545454545454546
2007	4.545454545454546
2008	4.636363636363637
2009	4.818181818181818
2010	4.909090909090909
2011	4.909090909090909
2012	5.045454545454546
2013	5.136363636363637
2014	5.5
2015	5.590909090909091
2016	5.681818181818182
2017	5.863636363636363
2018	6.045454545454546
2019	6.045454545454546