In May the consumerpriceindex fell by 1.1 per cent.
五月份的消费者物价指数下降了1.1个百分点。
《柯林斯英汉双解大词典》
2
This year's rise, an average of 2.7 percent, may be a fraction lower than last year's, but it is still well above the official ConsumerPriceIndex (CPI) measure of inflation.