Year	Number
1996	100
1998	99.4680862426758
2000	98.9417953491211
2002	99.4709014892578
2003	95.9798965454102
2004	90.7766952514648
2005	91.2621383666992
2006	95.1690826416016
2007	92.7536239624023
2008	85.0961532592773
2009	91.4691925048828
2010	90.5213241577148
2011	97.1563949584961
2012	93.3649291992188
2013	94.3127975463867
2014	84.2857131958008
2015	77.6190490722656
2016	71.9047622680664
2017	71.4285736083984
2018	69.8113174438477
2019	75.4716949462891
2020	77.3584899902344
2021	85.3773574829102
2022	82.5471725463867