by coincidence, I was sent a similar video from the same people this morning. It purported to show how the number of Muslims was racing ahead of the number of Christians. The actual numbers went up one by one (though very quickly) leaving me wondering if the world's midwives were notifying them every time a baby was born.
But I checked the numbers against a couple of other sources and they appear to be complete balderdash. Nor did they give a source for them. I wonder if they just make up their figures.