Year           Harvested        Yield         Production
                -acres-       -ton/acre-         -tons-
1850                NA            NA                35     
1879            31,042          0.94            29,307   
1899            68,101          0.99            67,714   
1909            60,337          1.02            61,765   
1920            44,320          0.93            41,160   
1930            56,250          0.62            34,670   
1940            56,920          0.94            53,400   
1950            51,600          0.95            48,900   
1960            41,000          1.44            59,100   
1970            42,700          1.90            81,100   
1980            45,900          1.65            76,000   
1985            47,700          1.65            79,000   
1990            53,100          2.15           114,100   
1991            50,600          2.27           114,900   
1992            47,100          2.11            99,600   
1993            44,900          1.85            83,100   
1994            43,500          2.12            92,200   
1995            42,500          2.08            88,500   
1996            47,100          1.65            77,700   
1997            42,600          2.01            85,400
1998            42,300          2.00            84,400 

NA-Not Available

Source: Missouri Agricultural Statistics Service