Year	Index
1980	32.454
1981	36.013
1982	41.992
1983	41.919
1984	40.607
1985	42.463
1986	43.059
1987	42.845
1988	43.141
1989	41.855
1990	42.497
1991	44.636
1992	43.695
1993	44.722
1994	66.411
1995	70.657
1996	74.123
1997	76.37
1998	75.308
1999	78.705
2000	76.745
2001	82.005
2002	83.278
2003	81.835
2004	85.042
2005	89.694
2006	91.005
2007	94.111
2008	103.776
2009	104.369
2010	108.291
2011	109.877
2012	112.955
2013	112.499
2014	114.56
2015	116.417
2016	116.946
2017	115.132
2018	117.4
2019	120.651
2020	122.291
2021	125.4
2022	127.34
2023	130.375
2024	132.982