Year	0=less disclosure to 10=more disclosure
2005	3.864406779661017
2006	3.864406779661017
2007	3.864406779661017
2008	3.9322033898305087
2009	4.084745762711864
2010	4.135593220338983
2011	4.237288135593221
2012	4.338983050847458
2013	4.389830508474576
2014	4.677966101694915
2015	4.779661016949152
2016	4.8474576271186445
2017	4.915254237288136
2018	5.0508474576271185
2019	5.11864406779661