I did not vote. I believe that the ideal number of children are based on:
1. How many can you afford to support? -food, clothing, schooling, TIME, and other needs
2. How many do you and your wife agree on?

I have one daughter. My wife and I agree that item number 1 takes precedence.
Kung pipilitin, may be we can have another child. But, that would mean downgrading my daughter to a lesser quality school, and compromising her other needs to support the other child. It's either that or any of our salaries magically double to be able to afford another child.