8月16日px与pta商品比价指数为99.76，较昨日上升了2.2点，较周期内高点114.78点（2018-11-27）下降了13.09%，较2018年08月28日低点63.60点上涨了56.86%。(注：周期指2013-01-01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px参考价为7300.00,自2020/5/28起，446天陆续上涨了82.50%。当天下游商品pta参考价为5212.73。
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