Year	Number
1996	100
1998	100
2000	100
2002	100
2003	100
2004	100
2005	100
2006	100
2007	100
2008	100
2009	98.5782012939453
2010	95.7345962524414
2011	97.1563949584961
2012	94.7867279052734
2013	92.4170608520508
2014	97.1428604125977
2015	93.3333358764648
2016	91.4285736083984
2017	95.7142868041992
2018	95.7547149658203
2019	95.2830200195313
2020	95.2830200195313
2021	93.8679275512695
2022	94.3396224975586