2021 vital statistics of Japan Volume 1, Natality Table 4.9: Number of live births by place of delivery : Japan, each prefecture (special wards and specified cities), 2021 (https://www.e-stat.go.jp/stat-search/files?page=1&query=2021%E5%B9%B4&layout=dataset&toukei=00450011&tstat=000001028897&cycle=7&month=0&tclass1=000001053058&tclass2=000001053061&tclass3=000001053064&stat_infid=000032235776&tclass4val=0&metadata=1&data=1)