Year	Number
1996	100
1998	100
2000	100
2002	100
2003	100
2004	90.3846130371094
2005	93.2692337036133
2006	100
2007	100
2008	100
2009	77.2511825561523
2010	75.8293838500977
2011	75.5868530273438
2012	74.6478881835938
2013	73.2394332885742
2014	73.3990173339844
2015	74.8768463134766
2016	75.3694610595703
2017	76.8472900390625
2018	76.6990280151367
2019	77.2946853637695
2020	76.8115921020508
2021	87.4396133422852
2022	85.9903411865234