Year	Index
1980	43.467
1981	47.58
1982	47.843
1983	48.477
1984	49.22
1985	49.708
1986	51.949
1987	54.581
1988	55.458
1989	57.554
1990	61.014
1991	64.864
1992	66.91
1993	67.398
1994	71.345
1995	74.659
1996	72.953
1997	74.366
1998	77.047
1999	78.587
2000	84.003
2001	86.501
2002	85.916
2003	86.355
2004	89.376
2005	94.006
2006	94.64
2007	101.07
2008	104.51
2009	101.28
2010	105.56
2011	110.61
2012	116.15
2013	115.29
2014	119.52
2015	116.41
2016	113.11
2017	115.35
2018	117.679
2019	120.041
2020	122.609
2021	125.061
2022	127.562
2023	130.113
2024	132.716