Year	Number
2003	100
2004	100
2005	100
2006	100
2007	96.6183547973633
2008	99.038459777832
2009	100
2010	99.5260696411133
2011	98.1042633056641
2012	98.5782012939453
2013	98.1042633056641
2014	79.0476226806641
2015	81.4285736083984
2016	87.1428604125977
2017	86.1904754638672
2018	88.2075500488281
2019	90.5660400390625
2020	96.2264175415039
2021	96.698112487793
2022	96.698112487793