Year	Number
1996	81.5
1998	84.5771179199219
2000	82.5870666503906
2002	83.5820922851563
2003	76.6169128417969
2004	80.7692337036133
2005	72.5961532592773
2006	75.4807662963867
2007	75
2008	76.9230804443359
2009	77.7251205444336
2010	80.568717956543
2011	81.2206573486328
2012	83.5680770874023
2013	83.0985946655273
2014	85.2216720581055
2015	86.2068939208984
2016	84.7290649414063
2017	84.7290649414063
2018	83.4951477050781
2019	84.0579681396484
2020	85.9903411865234
2021	83.0917892456055
2022	82.125602722168