Table:
text: Demographics of Imperial Japan
Urban population in overseas territories
Urban population in overseas territories
Rank_ City _1890_census _1910_census _1920_census _1930_census _1940_census
1 Keijō 1165000 230000 247000 350000 1100000
2 Fuzan NA 81000 74000 130000 400000
3 Heijō NA 40000 60000 137000 286000
4 Jinsen NA 30000 40000 54000 171000
5 Taihoku 78000 95000 164000 249000 326000
6 Tainan NA 44000 112000 166000 296000

Question: For cities with a 1920 census of 74000, what was their 1890 census under Demographics of Imperial Japan?

Question: From the list of Imperial Japan demographics for cities with a census of 296000 in 1940, what was their 1920 census?

Question: How many cities had a 1940 census of 400000 under Demographics of Imperial Japan?