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The ever interfering government has put restrictions in place that limit the frequency that growers can plant sunflowers to one year in seven.
Therefore growers have understandably lied about the amount of sunflowers they are growing to avoid prosecution and will continue to do so making any government statistics on the subject completely unreliable.
The seven year rule is not based on any scientific data but is an attempt to extort cash out of farm producers by fining them for breaking the rule.