Year 2010 = 100 1962 21.6166470890688 1963 22.6964014856725 1964 23.7995116347064 1965 26.8770811546127 1966 27.8184976335262 1967 28.8461507365374 1968 29.8486514908026 1969 30.1594626565266 1970 31.3577924113097 1971 33.6756559003345 1972 34.1669279813944 1973 35.9987456881206 1974 43.6265286921971 1975 47.7553046930333 1976 48.3380370020383 1977 50.6872582834483 1978 52.2603742028065 1979 56.0572802340075 1980 62.1250130656162 1981 69.8991324342532 1982 81.715793874595 1983 87.096268422494 1984 93.3051113199279 1985 100 1986 105.667920978363 1987 108.484895996655