| Number of Cities | Country | First Metro | % Correct |
|---|---|---|---|
| 46 | China | 1971 | 100%
|
| 11 | Japan | 1927 | 100%
|
| 6 | France | 1900 | 98%
|
| 17 | India | 1984 | 98%
|
| 13 | United States | 1892 | 98%
|
| 4 | Germany | 1902 | 95%
|
| 7 | Italy | 1955 | 95%
|
| 7 | Russia | 1935 | 93%
|
| 8 | Brazil | 1979 | 85%
|
| 7 | South Korea | 1974 | 83%
|
| 5 | Türkiye | 1989 | 73%
|
| 4 | Taiwan | 1996 | 63%
|
| 6 | Iran | 2000 | 61%
|