Year            Harvested           Yield            Production
                 -acres-          -bu/acre-           -bushels-
1850                 NA
1879             22,265             10.8              240,300 
1899              4,068              8.5               34,470
1909             10,501             12.8              134,230
1920             40,120             10.5              422,350 
1930             18,040             15.8              284,540
1940             43,000             20.4              878,020 
1950             38,000             17.5              663,600 
1960             32,600             28.7              934,600
1970             16,200             30.0              486,100 
1980             57,700             35.9            2,073,000
1985             43,200             32.1            1,385,000 
1990             55,400             28.0            1,550,000 
1991             43,700             33.3            1,455,000
1992             37,300             47.4            1,767,000 
1993             34,000             37.6            1,277,000
1994             39,300             43.6            1,713,000
1995             31,700             30.9              981,000 
1996             37,200             37.2            1,384,000
1997             24,500             51.0            1,250,000
1998             30,100             43.2            1,300,000

NA-Not available.

Source: Missouri Agricultural Statistics Service