Year	Number
1996	0.650729417800903
1998	0.832761347293854
2000	0.796799182891846
2002	0.900155961513519
2003	0.844509065151215
2004	0.763184726238251
2005	0.720574915409088
2006	0.610028147697449
2007	0.633248209953308
2008	0.644565641880035
2009	0.607087075710297
2010	0.578393816947937
2011	0.576675236225128
2012	0.692556440830231
2013	0.635518550872803
2014	0.764807999134064
2015	0.552077174186707
2016	0.727797985076904
2017	0.594937205314636
2018	0.623929619789124
2019	0.498032212257385
2020	0.527586281299591
2021	0.600826501846313
2022	0.621043562889099