Year	Number
1996	89.9497451782227
1998	92
2000	85.0746231079102
2002	83.5820922851563
2003	84.0796051025391
2004	86.538459777832
2005	86.6028671264648
2006	87.5598068237305
2007	87.5598068237305
2008	87.9807662963867
2009	88.1516571044922
2010	87.2037887573242
2011	86.8544616699219
2012	86.3849792480469
2013	86.3849792480469
2014	86.0576934814453
2015	84.2857131958008
2016	87.1428604125977
2017	85.2380981445313
2018	85.7142868041992
2019	87.1428604125977
2020	86.1904754638672
2021	85.7142868041992
2022	85.3773574829102