Population Pyramids Cont.

           In class today, we continued to talk about population pyramids but, we focused today on individual cities and not big countries. While looking at each of the charts it was very interesting to see how certain places have a very young population while many others have a population with a high amount of old people. Even though this was interesting, the most interesting thing was how in one of the cities, there were no 80 year old and then all of a sudden, there was an odd growth in the amount of male 85 year olds. I don't really understand how theres no 80-84 year olds but then there is a random amount of new 85-89 year olds. The old men just randomly appeared and I don't understand how. I asked about this in class but I was never given a true answer.