Year	Index
1980	6.797
1981	7.235
1982	8.147
1983	8.687
1984	9.153
1985	9.311
1986	9.209
1987	9.59
1988	9.87
1989	9.972
1990	10.391
1991	12.428
1992	13.608
1993	15.305
1994	18.519
1995	28.883
1996	32.693
1997	36.536
1998	38.897
1999	37.956
2000	39.44
2001	40.765
2002	41.572
2003	44.667
2004	50.019
2005	54.581
2006	59.401
2007	64.795
2008	74.8
2009	82.539
2010	84.442
2011	89.228
2012	94.837
2013	98.841
2014	100.605
2015	103.127
2016	109.03
2017	114.303
2018	115.862
2019	119.927
2020	125.923
2021	132.219
2022	138.83
2023	145.771
2024	153.06