项目进口（万吨）出口（万吨）净进口日期当月环比同比当月环比同比增速1月32.0311%-17%0.854%240%9%2月35.2910%28%0.11-87%175%13%3月43.0522%218%0.129%-61%22%4月34.62-20%-26%0.138%-19%-20%5月41.2619%101%0.1515%25%19%6月31.77-23