The (Explosive) growth of Walmart - AnimatedGif Edition

From All That Is Interesting, we have this animated gif showing the growth of Walmart stores in the US
To quote

Started by Sam Walton in 1962 in Rogers, Arkansas, Walmart now has over 8,500 stores in 15 countries. In the animation above, one can see how the store opened in 1962 has exploded to 3,898 Walmarts as of May 2012.