https://www.japandashboard.com/ 2025-08-20T00:00:00.000Z weekly 1 https://www.japandashboard.com/population 2025-08-20T00:00:00.000Z monthly 0.7 https://www.japandashboard.com/prefectures 2025-08-20T00:00:00.000Z monthly 0.7 https://www.japandashboard.com/aging 2025-08-20T00:00:00.000Z monthly 0.7 https://www.japandashboard.com/fertility 2025-08-20T00:00:00.000Z monthly 0.7