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PhiladelphiaUnited States |
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BaotouChina |
1 526 006
(2010) |
1 526 006
(2010)
2 700 000
(2010) |
2 700 000
(2010) |
367 km2
|
367 km2
27 768 km2
|
27 768 km2
|
4 158.05
/km2 |
4 158.05/km2
97.23/km2
|
97.23
/km2 |