Source: China Statistical Yearbook.

资料来源：《中国统计年鉴》。

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Source: Chinese Education Statistical Yearbook.

资料来源：中国教育统计年鉴。

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Note: Data are from Green Food Statistical Yearbook.

注：数据来自绿色食品统计年报。

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Note: Data are from Green Food Statistical Yearbook.

注：数据来自绿色食品统计年报。

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