Some interesting observations: Four of the top five, are Japanese cities The first US city appears only at no:17 - NY Abuja at no 18 and Kinhasa at no 19 - t

Some interesting observations: Four of the top five, are Japanese cities The first US city appears only at no:17 - NY Abuja at no 18 and Kinhasa at no 19 - they are more expensive than Berlin and Moscow, didn't expect that :)