Year	Index
1980	11.137
1981	12.343
1982	13.342
1983	14.484
1984	15.631
1985	16.756
1986	17.893
1987	19.562
1988	21.173
1989	22.959
1990	25.408
1991	28.903
1992	31.494
1993	34.6
1994	38.053
1995	41.501
1996	44.645
1997	47.536
1998	51.344
1999	53.106
2000	54.971
2001	56.674
2002	58.721
2003	60.945
2004	64.478
2005	67.21
2006	71.527
2007	75.644
2008	82.199
2009	87.183
2010	95.015
2011	100
2012	107.934
2013	114.612
2014	118.43
2015	121.13
2016	124.914
2017	129.706
2018	135.169
2019	140.593
2020	146.43
2021	152.375
2022	158.317
2023	164.405
2024	170.725