Mine Lots (1931) : Statistical Yearbook of Imperial Japan 52 (1933) Table 77

PERIOD: Total of Japan proper at the end of each year 1927-1931. Breakdown by type of minerals in Japan proper, Korea, Taiwan, South Sakhalin, Kwantung Province and South Manchurian Railway Zone at the end of 1931. SOURCE: [Statistical Tables of the Ministry of Commerce and Industry; Statistics by government offices, overseas territories of Japan].

期间：日本本土每年年末的总量，时间范围为1927年至1931年。具体分析日本本土、朝鲜、台湾、南萨哈林、关东省以及南满洲铁道区在1931年末的各类矿物分布情况。数据来源：[通商产业省统计表；日本海外领地政府机构统计]。