8月17日丙烯与pp商品比价指数为97.48，较昨日上升了0.02点，较周期内高点138.89点（2020-04-12）下降了29.81%，较2019年03月10日低点78.78点上涨了23.74%。(注：周期指2012-01-01至今)
注：本站定义，比价指数为周期内上下游商品每日价格之比的定基指数化结果。
据本站数据，当天丙烯参考价为7718.55。当天下游商品pp参考价为8500.00,自2021/8/10起，8天陆续上涨了2.00%。
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