Year	Number
1996	100
1998	100
2000	96.2765960693359
2002	96.8253936767578
2003	97.8835983276367
2004	97.0443344116211
2005	97.5609741210938
2006	96.0975646972656
2007	95.1456298828125
2008	95.6310653686523
2009	95.2153091430664
2010	94.7619018554688
2011	95.2606658935547
2012	95.7345962524414
2013	96.2085342407227
2014	95.6730804443359
2015	95.7142868041992
2016	96.6666641235352
2017	97.1428604125977
2018	98.0952377319336
2019	98.0952377319336
2020	97.6190490722656
2021	97.1428604125977
2022	98.1132049560547