i think it shoule be one bathroom per person (witht he exception of a marrie couple in a house, they share one), plus one more for guests, but in reality there usually ends up being one bathroom for the kids and one bathroom for the parents, with the occasional guest bathroom or the child who ends up having one in his/her bedroom.
The toilet uses about 1.6 gallons per flush.
It is used for 100 persons per unit.
It is issued for 100 persons per unit.
50 people to 1 toilet stall
approximately 20 people per year.
A lot.
Per Se - restaurant - was created in 2004.
0.5
Twenty times per household
Once per use...or twice sometimes...
2
The population density of Tonga is approximately 146 persons per square kilometer of land area.