Year           Harvested           Yield            Production
               - acres-          -bu/acre-          - bushels-
1850                NA                                 301,116
1879            11,627              25.3               294,602
1899            27,838              19.1               531,330
1909            23,943              15.5               370,562
1920            17,480              20.3               354,780
1930            10,250               6.4                66,130
1940             6,240              25.3               158,000
1950             7,000              34.4               241,000
1960             1,000              40.0                40,000
1970               300              38.0                11,300 
1980                NA        
1985                50              64.0                 3,200
1990                 *
1991                 *                
1992                 *
1993                 *
1994                 *                
1995                 *
1996                 *
1997                 *
1998                 *

* Less than 500 acres planted.
NA-Not available.

Source: Missouri Agricultural Statistics Service