関連ワード:
what percent of population lives in rural areas what percentage of population lives in rural areas what percent of people live in rural areas . what percentage of people lived in rural areas before the industrial revolution what percent of france's population lives in rural areas what percent of russia's population lives in rural areas what percent of canada's population lives in rural areas what percent of us population lives in rural areas what percent of germany's population lives in rural areas what percent of china's population lives in rural areas
