Year	Number
1996	100
1998	98.9361724853516
2000	96.2962951660156
2002	86.7724838256836
2003	70.3517608642578
2004	65.0485458374023
2005	64.5631103515625
2006	85.9903411865234
2007	79.7101440429688
2008	76.4423065185547
2009	63.5071105957031
2010	73.9336471557617
2011	69.6682434082031
2012	70.1421813964844
2013	73.459716796875
2014	69.523811340332
2015	72.8571395874023
2016	69.523811340332
2017	70.476188659668
2018	60.3773574829102
2019	76.4150924682617
2020	72.6415100097656
2021	75.4716949462891
2022	75.4716949462891