Year           Harvested        Yield         Production
                -acres-       -ton/acre-         -tons-
1850                NA            NA                730
1879            21,268          1.16             24,588
1899            74,430          1.06             78,821
1909            76,515          1.11             85,267 
1920            19,460          1.15             22,380
1930            19,660          0.57             11,180 
1940            22,810          1.05             24,010
1950            31,700          1.28             40,600 
1960            31,500          1.29             40,700
1970            40,900          1.80             73,600
1980            36,100          0.90             32,000
1985            47,700          2.10            100,000
1990            48,800          1.65             80,500
1991            53,600          1.16             62,200
1992            57,200          1.90            108,900
1993            53,100          1.95            103,600
1994            52,000          1.87             97,100
1995            51,400          1.92             98,700
1996            58,700          1.66             97,700
1997            54,500          1.92            104,700
1998            53,900          1.86            100,000    

NA-Not available.

Source: Missouri Agricultural Statistics Service