Year	0=less disclosure to 10=more disclosure
2005	4.461538461538462
2006	4.461538461538462
2007	4.461538461538462
2008	4.538461538461538
2009	4.846153846153846
2010	5
2011	5
2012	5.384615384615385
2013	5.384615384615385
2014	5.615384615384615
2015	5.615384615384615
2016	5.846153846153846
2017	6.076923076923077
2018	6.3076923076923075
2019	6.3076923076923075