Year	2004-2006 = 100
1961	26.31
1962	26.98
1963	28.11
1964	28.38
1965	28.28
1966	28.34
1967	27.96
1968	28.95
1969	30.06
1970	31.02
1971	32.7
1972	33.08
1973	33.14
1974	33.52
1975	34.45
1976	36.67
1977	36.81
1978	40.51
1979	42.32
1980	41.94
1981	43.21
1982	44.5
1983	45.57
1984	45.85
1985	47.18
1986	48.85
1987	49.6
1988	49.93
1989	49.66
1990	51.01
1991	52.49
1992	53.55
1993	55.21
1994	55.95
1995	57.29
1996	57.96
1997	60.24
1998	65.57
1999	68.06
2000	69.48
2001	72.02
2002	74.69
2003	81.21
2004	88.39
2005	101.34
2006	110.26
2007	118.94
2008	127.62
2009	132.95
2010	145.64
2011	162.37
2012	170.7
2013	161.72
2014	166.38
2015	171.67
2016	177.07