Year	Index
1992	0.159
1993	2.303
1994	43.567
1995	80.422
1996	85.792
1997	86.126
1998	79.586
1999	79.215
2000	80.959
2001	82.4
2002	85
2003	88
2004	97.2
2005	102.4
2006	114
2007	136.3
2008	157.4
2009	158.5
2010	171.1
2011	180.7
2012	180.2
2013	186.9
2014	186.7
2015	201.3
2016	232.8
2017	256.08
2018	261.97
2019	268.519
2020	275.232
2021	282.113
2022	289.166
2023	296.395
2024	303.805