Year	Index
1980	34.182
1981	38.858
1982	43.534
1983	48.545
1984	53.666
1985	57.007
1986	59.122
1987	61.349
1988	63.687
1989	67.918
1990	75.277
1991	84.084
1992	92.03
1993	98.908
1994	109.463
1995	118.595
1996	119.604
1997	123.494
1998	128.206
1999	130.34
2000	121.727
2001	109.213
2002	101.275
2003	100
2004	96.539
2005	99.441
2006	106.629
2007	114.713
2008	125.871
2009	126.284
2010	130.483
2011	165.252
2012	159.18
2013	161.894
2014	173.45
2015	200.712
2016	250.891
2017	336.179
2018	386.606
2019	444.597
2020	511.286
2021	587.979
2022	676.176
2023	777.602
2024	894.242