I do not care for nasty comments but for the sake of honesty I read the comment in a haste and the 600k number based on what I said is way too high. I do not care if you believe me or not but I actually am very good with #s and dont remember my exact score but got well into 700s on Math.
However, I have been to every large frum community in NY area and I think 5 children in school at one time is way above average especially since more modern families have about 3 kids total.