Year	Index
1992	11.178
1993	23.384
1994	31.779
1995	39.724
1996	46.715
1997	50.487
1998	52.655
1999	53.768
2000	55.184
2001	56.578
2002	57.689
2003	59.385
2004	63.059
2005	67.404
2006	71.833
2007	79.075
2008	91.137
2009	94.107
2010	92.955
2011	96.88
2012	99.094
2013	99.105
2014	99.789
2015	100.002
2016	100.101
2017	102.998
2018	105.628
2019	108.192
2020	110.817
2021	113.162
2022	115.496
2023	117.919
2024	120.377