Fibre crops - yield reached 100 3.80 kg/ha in 1999 in Poland, according to . This is 9.52% less than in the previous year.
Historically, Fibre crops - Yield in Poland reached an all time high of 100 6.70 kg/ha in 1987 and an all time low of 100 3.30 kg/ha in 1992.
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