Year	0=less disclosure to 10=more disclosure
2005	5.2727272727272725
2006	5.2727272727272725
2007	5.2727272727272725
2008	5.2727272727272725
2009	5.409090909090909
2010	5.409090909090909
2011	5.409090909090909
2012	5.409090909090909
2013	5.409090909090909
2014	6.090909090909091
2015	6.2272727272727275
2016	6.2727272727272725
2017	6.2727272727272725
2018	6.2727272727272725
2019	6.2727272727272725