Year	Index
1980	39.608
1981	42.629
1982	46.348
1983	49.9
1984	53.067
1985	55.65
1986	56.371
1987	57.247
1988	57.913
1989	59.711
1990	61.773
1991	63.729
1992	65.168
1993	66.787
1994	68.387
1995	69.253
1996	70.476
1997	71.535
1998	72.184
1999	73.003
2000	74.959
2001	76.784
2002	77.973
2003	79.155
2004	80.625
2005	82.671
2006	84.595
2007	86.132
2008	89.998
2009	89.993
2010	92.093
2011	95.18
2012	97.679
2013	98.898
2014	99.383
2015	99.999
2016	101.769
2017	104.033
2018	106.437
2019	108.491
2020	110.231
2021	112.315
2022	114.423
2023	116.635
2024	118.915