HONG KONG, March 23 (Reuters) - The number of kindergartens in China has dropped for the first time in 15 years, falling by more than 5,000 on the previous year, financial news outlet Yicai reported, citing data from the country's Education Ministry. The number of rural kindergartens is decreasing along with urbanisation as residents move to more urban cities, Yicai said. See here for a complete list of exchanges and delays