| Country | Population in 2008 | Population 2018 | Decrease | City | % Correct |
|---|---|---|---|---|---|
| Greece | 3,174,148 | 3,155,600 | -0.6% | Athens | 86%
|
| Cuba | 2,157,893 | 2,136,468 | -1.0% | Havana | 85%
|
| United States | 3,763,170 | 3,599,890 | -4.3% | Detroit | 84%
|
| Syria | 2,879,589 | 1,753,516 | -39.1% | Aleppo | 83%
|
| Romania | 1,898,091 | 1,821,380 | -4.0% | Bucharest | 81%
|
| Italy | 2,220,341 | 2,197,719 | -1.0% | Naples | 78%
|
| Georgia | 1,079,974 | 1,077,333 | -0.2% | Tbilisi | 76%
|
| Puerto Rico | 2,484,146 | 2,454,337 | -1.2% | San Juan | 73%
|
| Ukraine | 1,457,064 | 1,435,895 | -1.5% | Kharkiv | 53%
|
| United States | 1,781,717 | 1,775,757 | -0.3% | Cleveland | 48%
|
| Ukraine | 1,022,333 | 969,053 | -5.2% | Dnipro | 43%
|
| Russia | 1,018,807 | 1,014,237 | -0.4% | Volgograd | 41%
|
| Russia | 1,267,611 | 1,264,336 | -0.3% | Nizhny Novgorod | 40%
|
| South Korea | 2,294,024 | 2,221,234 | -3.2% | Daegu | 37%
|
| United States | 1,737,212 | 1,718,093 | -1.1% | Pittsburgh | 36%
|
| Bangladesh | 1,131,068 | 975,418 | -13.8% | Khulna | 13%
|
| South Korea | 1,068,180 | 1,059,891 | -0.8% | Changwon | 3%
|
| China | 1,328,287 | 1,288,180 | -3.0% | Fushun | 1%
|