Year	2014-2016 = 100
1961	32.09
1962	34.78
1963	36.25
1964	38.85
1965	42.1
1966	43.71
1967	42.67
1968	31.48
1969	31.24
1970	27.05
1971	24.12
1972	23.29
1973	23.01
1974	22.89
1975	23.79
1976	26.77
1977	27.02
1978	30.75
1979	34.24
1980	44.05
1981	32.65
1982	35.58
1983	30.81
1984	36.99
1985	37.61
1986	49.85
1987	71.89
1988	73.4
1989	72.58
1990	67.81
1991	61.32
1992	71.25
1993	72.46
1994	61.7
1995	73.11
1996	64.21
1997	68.43
1998	76.07
1999	90.61
2000	102.75
2001	97.54
2002	91.67
2003	92.17
2004	94.58
2005	93.4
2006	91.64
2007	97.89
2008	91.88
2009	95.51
2010	92.52
2011	96.86
2012	100.35
2013	104.66
2014	99.26
2015	100.69
2016	100.05
2017	87.69
2018	73.43
2019	73.93
2020	75.67
2021	75.92
2022	74.78