Year	0=less disclosure to 10=more disclosure
2005	4.696969696969697
2006	4.757575757575758
2007	4.924242424242424
2008	5.090909090909091
2009	5.287878787878788
2010	5.333333333333333
2011	5.393939393939394
2012	5.5
2013	5.53030303030303
2014	5.666666666666667
2015	5.803030303030303
2016	5.924242424242424
2017	6
2018	6.0606060606060606
2019	6.212121212121212