According to the United Nations there are approximately 7,349,472,099 people on the planet. The cumulative effort of all those people result in a birth rate of approximately 19.587 persons per 1,000 people and a death rate of approximately 7.829 persons per 1,000 people.
Using some math it's possible to deduce approximately how many people are born and die every second. That's what this is, it's the rate of us.
(A project by Dirk Gadsden.)