CROP PRODUCTION INDEX

The 1996 Illinois All Crop Production Index, at 118 percent of the 1977 base, was up 16 percentage points from the 1995 index of 102 percent. The 1992-1996 five-year average for this index is 119 percent. Production was above 1995 for most major crops due to an improved spring and an average growing season.


ALL CROP PRODUCTION INDEX, 1966-96
Year Index 1/ Year Index 1/ Year Index 1/
1966 67 1976 95 1986 111
1967 82 1977 100 1987 99
1968 74 1978 98 1988 66
1969 77 1979 114 1989 110
1970 64 1980 92 1990 109
1971 83 1981 113 1991 94
1972 84 1982 115 1992 128
1973 83 1983 66 1993 112
1974 68 1984 97 1994 136
1975 100 1985 120 1995 102
        1996 118
1/ 1977=100

All Crop Production

Note: The All Crop Production Index is the result of multiplying the 1996 production of all grain, hay, fruit, and vegetable crops by the 1977 season average price, then dividing that figure by the 1977 production of those same crops multiplied by the 1977 season average price. By keeping the price constant, production becomes the only variable and this eliminates price fluctuations. The purpose of this index is to equate production from year to year by making the units produced (i.e. bushels, tons, etc.) a neutral factor. The year 1977 is used as the base simply because it is the year that this index was developed.



Illinois Agricultural Statistics Service
Annual Summary - 1997		 Page 20


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