There are a number of different reasons why. The main one is that Chinese telecommunications companies don't have enough bandwidth to interact with the outside world.

Kipper is always one of the main reasons why we win hockey games.

I'd definitely like to be part of that offense. That's one of the main reasons I'd like to stay.

TMBG is one of the main reasons I play accordion in the first place.

Chopsticks are one of the reasons the Chinese never invented custard

There could be a number of reasons why the number of voters is larger in one ward than the other - there could be more people who actually register, or there could be a discrepancy in the number of children, ... One thing that surprised me is that there have been some huge (housing) developments in the city that I figured would have charged the demographics, but that's not been the case.