HangzhouChina |
RotterdamNetherlands |
8 700 000
(2010) |
8 700 000
(2010)
617 347
(2012) |
617 347
(2012) |
16 847 km2
|
16 847 km2
319 km2
|
319 km2
|
516.41
/km2 |
516.41/km2
1 935.26/km2
|
1 935.26
/km2 |