At that time, approximately 40% of residents were from Osaka Prefecture, Tokushima Prefecture, Okayama Prefecture, Hiroshima Prefecture, Kyoto Prefecture, and the population rose to about 400,000 which was three times its number in a little more than 20 years.
当時の住民の約40％が大阪府、徳島県、岡山県、広島県、京都府の出身者で、人口は20年余りで3倍の約40万人となっていた。