Year	Index
1980	26.313
1981	28.835
1982	33.854
1983	37.433
1984	40.718
1985	42.211
1986	49.683
1987	53.325
1988	56.217
1989	58.202
1990	59.587
1991	62.458
1992	64.447
1993	71.628
1994	76.702
1995	80.236
1996	83.278
1997	85.251
1998	88.181
1999	94.353
2000	91.916
2001	93.123
2002	92.822
2003	94.473
2004	93.885
2005	94.473
2006	97.353
2007	100
2008	103.546
2009	105.798
2010	106.332
2011	109.178
2012	109.782
2013	111.35
2014	111.186
2015	113.117
2016	112.855
2017	113.475
2018	114.889
2019	116.834
2020	119.046
2021	121.403
2022	123.821
2023	126.34
2024	128.895