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Table 2 Median (min, max) county crop density (percentage of total acreage) for six Midwestern states, excluding counties with populations >300,000

From: Agricultural crop density and risk of childhood cancer in the midwestern United States: an ecologic study

Crop Illinois Indiana Iowa Michigan Missouri Ohio Total
Agricultural land 72.04 (16.80, 90.83) 59.24 (4.52, 96.11) 76.63 (40.89, 94.41) 16.79 (0.14, 73.97) 43.28 (5.91, 97.71) 44.57 (7.18, 95.20) 57.69 (0.14, 97.71)
Barley 0.00 (0.00, 0.05) 0.00 (0.00, 0.07) 0.00 (0.00, 0.12) 0.02 (0.00, 0.22) 0.00 (0.00, 0.10) 0.01 (0.00, 0.25) 0.00 (0.00, 0.25)
Beans (dry) - 0.00 (0.00, 0.14) 0.00 (0.00, 0.14) 0.02 (0.00, 14.98) 0.00 (0.00, 0.08) 0.00 (0.00, 0.14) 0.00 (0.00, 14.98) a
Corn 34.39 (2.15, 53.68) 26.31 (0.88, 51.12) 37.97 (7.02, 52.50) 2.01 (0.00, 28.44) 4.65 (0.00, 35.88) 11.29 (0.14, 31.11) 19.1 (0.00, 53.68)
Hay 1.61 (0.29, 7.51) 1.90 (0.39, 7.94) 2.63 (0.48, 11.33) 2.92 (0.05, 9.77) 9.23 (0.09, 22.71) 3.54 (0.85, 12.57) 2.84 (0.05, 22.71)
Oats 0.04 (0.00, 0.65) 0.02 (0.00, 0.60) 0.21 (0.01, 1.28) 0.14 (0.00, 0.82) 0.02 (0.00, 0.18) 0.09 (0.00, 2.18) 0.07 (0.00, 2.18)
Sorghum 0.03 (0.00, 2.72) 0.00 (0.00, 0.67) 0.00 (0.00, 0.25) 0.00 (0.00, 0.06) 0.13 (0.00, 3.27) 0.00 (0.00, 0.14) 0.00 (0.00, 3.27)
Soybeans 28.11 (2.88, 42.98) 24.12 (0.73, 44.62) 28.71 (6.23, 40.64) 0.44 (0.00, 24.15) 9.66 (0.00, 61.20) 16.10 (0.01, 47.99) 20.12 (0.00, 61.20)
Sugar beets - - - 0.00 (0.00, 10.28) - 0.00 (0.00, 0.32) 0.00 (0.00, 10.28) b
Wheat 1.10 (0.05, 18.37) 0.94 (0.08, 11.98) 0.03 (0.00, 0.66) 0.37 (0.00, 8.55) 1.02 (0.00, 18.92) 2.25 (0.01, 12.42) 0.71 (0.00, 18.92)
  1. aExcluding Illinois. bHarvested in Michigan and Ohio only. - Crop not grown in this state. Agricultural land is total agricultural land including the nine crops under study