Year	0=less disclosure to 10=more disclosure
2005	4.297297297297297
2006	4.297297297297297
2007	4.297297297297297
2008	4.297297297297297
2009	4.378378378378378
2010	4.378378378378378
2011	4.486486486486487
2012	4.54054054054054
2013	4.621621621621622
2014	5.054054054054054
2015	5.216216216216216
2016	5.351351351351352
2017	5.351351351351352
2018	5.648648648648648
2019	5.648648648648648