| Variable | Sown area of grain (103 hm2) | Grain output per hectare (kg/hm2) | Grain output (107 kg) | Year | Simulation value | Actual value | Relative error (%) | Simulation value | Actual value | Relative error (%) | Simulation value | Actual value | Relative error (%) |
| +10% | 2010 | 9,740.16 | 9,740.17 | 0.0001 | 5,719.23 | 5,730.72 | 0.2005 | 5,570.62 | 5,581.82 | 0.2007 | 2011 | 9,856.30 | 9,859.87 | 0.0362 | 5,490.67 | 5,815.41 | 5.5842 | 5,411.77 | 5,733.92 | 5.6183 | 2012 | 10,413.60 | 10,434.56 | 0.2009 | 5,606.70 | 5,652.73 | 0.8144 | 5,838.62 | 5,898.38 | 1.0132 | 2013 | 10,672.90 | 10,697.43 | 0.2293 | 5,683.28 | 5,631.07 | 0.9271 | 6,065.69 | 6,023.80 | 0.6954 | 2014 | 10,959.10 | 10,944.97 | 0.1291 | 5,781.49 | 5,604.04 | 3.1665 | 6,335.98 | 6,133.60 | 3.2995 | 2015 | 11,143.00 | 11,126.30 | 0.1501 | 5,869.42 | 5,815.25 | 0.9315 | 6,540.32 | 6,470.22 | 1.0834 | 2016 | 11,222.60 | 11,219.55 | 0.0272 | 5,913.16 | 5,791.69 | 2.0974 | 6,636.09 | 6,498.01 | 2.1250 | 2017 | 10,914.20 | 10,915.13 | 0.0085 | 5,963.28 | 5,977.25 | 0.2338 | 6,508.45 | 6,524.25 | 0.2422 | 2018 | 10,847.40 | 10,906.08 | 0.5380 | 6,045.35 | 6,096.52 | 0.8393 | 6,557.65 | 6,648.91 | 1.3726 | 2019 | 10,742.30 | 10,734.54 | 0.0723 | 6,115.73 | 6,237.21 | 1.9477 | 6,569.70 | 6,695.36 | 1.8768 | Average relative error | 0.1392 | | | 1.6742 | | | 1.7527 |
| −10% | 2010 | 9,740.16 | 9,740.17 | 0.0001 | 5,719.23 | 5,730.72 | 0.2005 | 5,570.62 | 5,581.82 | 0.2007 | 2011 | 9,856.30 | 9,859.87 | 0.0362 | 5,490.67 | 5,815.41 | 5.5842 | 5,411.77 | 5,733.92 | 5.6183 | 2012 | 10,413.60 | 10,434.56 | 0.2009 | 5,621.40 | 5,652.73 | 0.5543 | 5,853.92 | 5,898.38 | 0.7538 | 2013 | 10,672.90 | 10,697.43 | 0.2293 | 5,713.11 | 5,631.07 | 1.4569 | 6,097.52 | 6,023.80 | 1.2238 | 2014 | 10,959.10 | 10,944.97 | 0.1291 | 5,827.06 | 5,604.04 | 3.9797 | 6,385.92 | 6,133.60 | 4.1137 | 2015 | 11,143.00 | 11,126.30 | 0.1501 | 5,931.19 | 5,815.25 | 1.9937 | 6,609.14 | 6,470.22 | 2.1471 | 2016 | 11,219.90 | 11,219.55 | 0.0031 | 5,989.96 | 5,791.69 | 3.4234 | 6,720.64 | 6,498.01 | 3.4261 | 2017 | 10,909.00 | 10,915.13 | 0.0562 | 6,055.44 | 5,977.25 | 1.3081 | 6,605.89 | 6,524.25 | 1.2513 | 2018 | 10,840.90 | 10,906.08 | 0.5976 | 6,153.79 | 6,096.52 | 0.9394 | 6,671.24 | 6,648.91 | 0.3358 | 2019 | 10,737.00 | 10,734.54 | 0.0229 | 6,240.85 | 6,237.21 | 0.0583 | 6,700.82 | 6,695.36 | 0.0815 | Average relative error | 0.1426 | | | 1.9499 | | | 1.9152 |
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