Number of Subscribed Radio Listeners (FY 1938) : Statistical Yearbook of Imperial Japan 58 (1939) Table 198

PERIOD: End of each FY 1934-1938. By prefecture at the end of 1938. By occupation of listeners at the end of each FY 1930-FY1938. SOURCE: [Statistical Abstract of the Japan Broadcasting Corporation].

时期：1934-1938年财务年度之末。按1938年末的都道府县划分。按1930-1938年每个财务年度末的听众职业划分。来源：[日本广播公司统计摘要]。