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OkayamaJapan |
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RiyadhSaudi Arabia |
709 584
(2010) |
709 584
(2010)
5 700 000
(2013) |
5 700 000
(2013) |
789 km2
|
789 km2
1 554 km2
|
1 554 km2
|
899.35
/km2 |
899.35/km2
3 667.95/km2
|
3 667.95
/km2 |