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注:中国系1983年数字,美国、日本系1981年 数字 45个城市即各省和自治区首府、中央直辖 市和15个开放城市及重庆市
Note: The Chinese Department of 1983 figures, the United States, Japan Department of 1981 figures 45 cities that provinces and autonomous regions capital, central and municipalities and 15 open cities and Chongqing