| Population | Answer | % Correct |
|---|---|---|
| 19M | Osaka | 100%
|
| 36M | Tokyo | 100%
|
| 2.6M | Sapporo | 98%
|
| 2.0M | Hiroshima | 93%
|
| 8.9M | Nagoya | 93%
|
| 5.6M | Fukuoka | 82%
|
| 2.3M | Sendai | 70%
|
| 1.6M | Okayama | 52%
|
| 1.4M | Niigata | 50%
|
| 1.5M | Kumamoto | 30%
|