Year	0=less disclosure to 10=more disclosure
2005	3.8181818181818183
2006	3.909090909090909
2007	3.909090909090909
2008	3.909090909090909
2009	3.909090909090909
2010	3.9393939393939394
2011	3.9393939393939394
2012	3.9696969696969697
2013	4
2014	4.03030303030303
2015	4.121212121212121
2016	4.121212121212121
2017	4.212121212121212
2018	4.212121212121212
2019	4.242424242424242