合约月份 买入价 卖出价 16-Dec 79.4 79.7 16-Jan 77.1 77.4 16-Feb 75.2 75.5 Q1'17 75.25 75.55 Q2'17 70.95 71.25 Q3'17 67.3 67.6 Cal-17 69.35 69.65