Year	Index
1980	53.215
1981	56.837
1982	59.929
1983	61.928
1984	65.436
1985	67.523
1986	68.696
1987	69.663
1988	70.964
1989	72.561
1990	74.577
1991	76.901
1992	79.536
1993	82.108
1994	84.334
1995	85.693
1996	87.211
1997	88.228
1998	88.95
1999	89.407
2000	91.156
2001	93.254
2002	94.824
2003	96.057
2004	97.943
2005	100
2006	101.689
2007	103.926
2008	107.281
2009	107.715
2010	109.539
2011	113.418
2012	116.333
2013	118.796
2014	120.54
2015	121.514
2016	122.695
2017	125.431
2018	128.089
2019	130.347
2020	132.938
2021	135.713
2022	138.563
2023	141.351
2024	144.178