How big was the world's population when you were born?

[GeoVidyaa]

How big was the world's population when you were born?

The world's population is due to hit 7 billion this October. Use the
box below to find out the world's population on your birth date, and
how different countries were growing at that time.

(Note: because of the data we're using, we're only able to handle
birthdays after 1951 at the moment.)

http://www.guardian.co.uk/environment/interactive/2011/oct/24/how-big-worlds-population-born