Year	Number
1996	92.4623107910156
1998	92.5
2000	93.0348281860352
2002	92.5373153686523
2003	93.0348281860352
2004	90.8653869628906
2005	91.3875579833984
2006	92.8229675292969
2007	91.8660278320313
2008	92.3076934814453
2009	91.9431304931641
2010	92.4170608520508
2011	91.0798110961914
2012	91.5492935180664
2013	90.6103286743164
2014	89.9038467407227
2015	90.476188659668
2016	91.4285736083984
2017	91.9047622680664
2018	89.0476226806641
2019	89.0476226806641
2020	88.0952377319336
2021	89.0476226806641
2022	88.6792449951172