(UP October 25,2019)
[Source] National Census 2015 and iTownpage website as researched by Fukuoka City
* 21 major cities: the 20 metropolises and the 23 wards of Tokyo
[Source] Retail Price Survey (Trend Survey) Report (Ministry of Internal Affairs and Communications)
* 16 major cities: cities that are both prefectural capitals and metropolises, and 23 special wards of Tokyo
(UP October 25,2019)