Year	Index
1980	34.644
1981	39.215
1982	44.628
1983	49.319
1984	55.454
1985	60.506
1986	62.551
1987	65.318
1988	67.363
1989	70.37
1990	70.877
1991	79.17
1992	86.652
1993	93.128
1994	103.066
1995	111.664
1996	116.126
1997	120.291
1998	124.765
1999	127.977
2000	124.256
2001	113.273
2002	102.101
2003	100
2004	101.252
2005	103.943
2006	105.466
2007	112.017
2008	123.667
2009	126.695
2010	129.808
2011	150.45
2012	159.585
2013	163.725
2014	167.708
2015	184.208
2016	231.883
2017	298.046
2018	366.861
2019	421.89
2020	485.174
2021	557.95
2022	641.642
2023	737.889
2024	848.572