Year	Number
1996	100
1998	100
2000	95.2380981445313
2002	93.6507949829102
2003	77.3869323730469
2004	71.8446578979492
2005	77.1844635009766
2006	78.260871887207
2007	77.2946853637695
2008	79.3269195556641
2009	72.0379180908203
2010	76.7772521972656
2011	72.9857788085938
2012	73.459716796875
2013	73.459716796875
2014	71.9047622680664
2015	67.6190490722656
2016	69.523811340332
2017	67.6190490722656
2018	66.9811325073242
2019	70.7547149658203
2020	72.1698150634766
2021	79.7169799804688
2022	73.5849075317383