what size is the average hong kong family?? HELP!!^.^

Nowaday, I think most of the Hong Kong Family are small size because of the an economy. Most of the family only have one or two kids, not like used to be, a big family with six,seven kids. Therefore, I think it should be consider small size!

I think most hong kong family are 4-5 people,
more in the past, more than 5, usually 6-8.