Jumping more than 4 percent through April 20, the rate on the PNW to Japan route is within 3 percent of an all time high, closing that week at $48.61 per tonne.

• 太平洋西北沿岸至日本的运费始终保持着近3%25的增长，到4月20日，增幅超过4%25，那一周结束时，运费已达每吨48．61美元。