Year	Number
1996	-0.134768322110176
1998	-0.241092368960381
2000	-0.23706117272377
2002	-0.286515563726425
2003	-0.83488517999649
2004	-0.680570840835571
2005	-0.971029877662659
2006	-0.802562952041626
2007	-0.852070689201355
2008	-0.696565806865692
2009	-0.506110489368439
2010	-0.415407210588455
2011	-0.417126506567001
2012	-0.45806810259819
2013	-0.32859343290329
2014	-0.333112090826035
2015	-0.270498692989349
2016	-0.25367596745491
2017	-0.280111223459244
2018	-0.286690950393677
2019	-0.728338599205017
2020	-0.453478872776031
2021	-0.278813034296036
2022	-0.283260941505432