Year           Harvested        Yield         Production
                -acres-       -ton/acre-         -tons-
1850                NA                              229
1879               171          0.97                166
1899             3,307          1.05              3,458 
1909            10,604          0.95             10,108
1920             9,510          0.92              8,750
1930            11,350          0.45              5,150 
1940            14,930          0.94             13,960 
1950            18,700          1.29             24,200
1960             9,800          1.04             10,200
1970            10,200          1.80             18,400
1980            10,000          1.10             11,000
1985            14,300          1.75             25,000
1990            12,100          1.60             19,400 
1991            12,200          1.97             24,000 
1992            11,800          1.84             21,700
1993            11,700          2.20             25,700
1994            11,600          2.00             23,200
1995            12,100          1.71             20,700 
1996            14,600          1.58             23,000
1997            14,500          1.88             27,200
1998            13,800          1.78             24,600

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

Source: Missouri Agricultural Statistics Service