Year           Harvested           Yield            Production
               - acres-          -bu/acre-          - bushels-
1850                NA                                811,855
1879            67,503             32.9             2,219,588
1899            85,214             31.2             2,657,800
1909            96,028             31.8             3,055,717
1920            76,007             25.6             1,948,970
1930            68,450             12.1               829,270
1940            41,500             29.6             1,226,930
1950            43,200             41.5             1,794,900
1960            52,000             52.4             2,725,000
1970            35,000             52.0             1,833,400
1980            14,300             38.5               551,000
1985            17,400            107.0             1,862,000
1990            11,000            102.4             1,126,000
1991            15,200             95.3             1,449,000
1992            17,300            141.5             2,448,000
1993             8,500             91.6               779,000
1994            15,300             95.1             1,455,000
1995             6,800             89.9               611,000
1996            17,600            131.5             2,314,000
1997            21,100            101.5             2,141,000
1998            19,800            113.7             2,252,000  

NA  Not Available

Source: Missouri Agricultural Statistics Service