Answer the questions based on the following information. In the following chart, the price of logs shown is per cubic metre that of plywood and saw timber is per tonne.
What is the maximum percentage increase in price per cubic metre or per tonne over the previous year?
The maximum percentage increase in price of logs happened in the year 1991 (compared to 1990) and equaled 18/15 - 1 = 20%
The maximum percentage increase in price of plywood happened in the year 1992 (compared to 1991) and equaled 6/4 - 1 = 50%
The maximum percentage increase in price of sawtimber happened in the year 1993 (compared to 1992) and equaled 20/15 - 1 = 33.33%
Hence, the correct answer is 50%
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