ZHENGZHOU, Aug. 9, 2016 (Xinhua) -- Cookies on sale are seen in a supermarket in Zhengzhou, capital of central China's Henan Province, July 28, 2016. China's consumer price index (CPI) grew 1.8 percent year on year in July, virtually unchanged from 1.9 percent in June, while the producer price index (PPI), which measures costs of goods at the factory gate, dropped 1.7 percent, the National Bureau of Statistics announced on Aug. 9. (Xinhua/Li An)