Year	Index
1980	41.899
1981	45.503
1982	53.101
1983	58.624
1984	62.083
1985	66.615
1986	70.878
1987	70.169
1988	63.293
1989	67.662
1990	78.061
1991	70.387
1992	63.67
1993	64.01
1994	87.128
1995	95.533
1996	96.192
1997	100.014
1998	101.463
1999	99.499
2000	100
2001	102.136
2002	102.304
2003	104.457
2004	104.884
2005	106.112
2006	104.62
2007	103.552
2008	109.002
2009	111.057
2010	112.664
2011	114.086
2012	117.147
2013	117.71
2014	123.021
2015	122.845
2016	125.408
2017	128.734
2018	134.879
2019	138.925
2020	142.398
2021	146.015
2022	149.724
2023	153.527
2024	157.427