SanaaYemen |
ZhangjiakouChina |
2 575 347
(2012) |
2 575 347
(2012)
4 345 491
(2010) |
4 345 491
(2010) |
126 km2
|
126 km2
36 947 km2
|
36 947 km2
|
20 439.30
/km2 |
20 439.30/km2
117.61/km2
|
117.61
/km2 |