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2003 Fact-Finding Survey on the EC of Construction Companies(PDF)[2003.08.26]

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Comparison of Investigation Results of "Price Data for Construction Cost Estimating" and "CGPI" of Bank of Japan(PDF)[2003.08.26]

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2002 Fact-Finding Survey on the EC of Construction Companies(PDF)[2002.08.26]

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Change in Prices during Half a Century (Renewal of every month)[2004.02.20 update]

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Prices of Main Materials (Renewal of every month)(PDF)[2005.03.01 update]

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