Year           Harvested        Yield         Production
                -acres-       -ton/acre-         -tons-
1850             NA                              3,695
1879         17,717             0.67            11,789
1899         41,540             1.03            42,808
1909         30,890             1.02            31,648
1920         35,120             0.94            32,910
1930         47,600             0.83            39,360
1940         33,090             1.02            33,900
1950         22,500             1.36            30,500
1960         18,600             1.98            36,900
1970         31,600             2.00            63,200
1980         30,000             1.50            45,000
1985         25,500             2.25            57,500
1990         24,500             2.50            61,200
1991         25,200             2.47            62,300
1992         24,100             1.82            43,900
1993         23,900             2.25            53,800
1994         23,400             2.22            51,900
1995         23,500             2.33            54,700
1996         24,700             1.90            46,900
1997         24,600             2.41            59,400
1998         25,600             2.16            55,200

NA-Not available.

Source: Missouri Agricultural Statistics Service