Year	Number
1996	82.5
1998	83.0845794677734
2000	84.5771179199219
2002	82.0895538330078
2003	89.0547256469727
2004	87.9807662963867
2005	87.9807662963867
2006	89.4230804443359
2007	89.4230804443359
2008	89.9038467407227
2009	89.5734634399414
2010	89.0995254516602
2011	89.6713638305664
2012	89.2018814086914
2013	89.2018814086914
2014	88.6699523925781
2015	88.6699523925781
2016	89.6551742553711
2017	89.1625595092773
2018	86.4077682495117
2019	81.6425094604492
2020	82.6086959838867
2021	81.6425094604492
2022	81.6425094604492