Meanwhile, a dramatic shift occurred on the demand side, as emerging economies grew and became middle-income countries. Developing country producers, who in an earlier era accounted for a relatively small fraction of global demand, became major consumers.
与此同时，需求端产生了巨大的变化，新兴经济体成长为中等收入国家。发展中生产国成了主要消费者，而此前它们只占全球需求的很小一部分。