Year	Number
1996	83.6956558227539
1998	91.3043441772461
2000	89.1304321289063
2002	87.0270233154297
2003	83.2432403564453
2004	80.5970153808594
2005	77.9411773681641
2006	76.9607849121094
2007	79.1262130737305
2008	79.1262130737305
2009	77.0334930419922
2010	77.0334930419922
2011	77.2511825561523
2012	79.620849609375
2013	79.1469192504883
2014	82.6923065185547
2015	77.1428604125977
2016	82.8571395874023
2017	79.0476226806641
2018	80.476188659668
2019	74.2857131958008
2020	76.1904754638672
2021	79.0476226806641
2022	77.8301849365234