These are amazing analytics! Have you considered posting them on popular sites or share them otherwise for more people? I think they could be helpful.
I've been thinking of "web appifying" this, and playing with the variables more.
Ideally the user would determine which of their variables (e.g. apartment size, people per household, households per lot) are fixed, which are normally distributed, and which should be calculated based on the others.
I have working interface, but no extra analytics as of yet