(to cite, use the twitter handle: @d4tagirl, thanks!)
Here is the code to make this animated map:
And the Latin American version :)
The ggmap package is used to access maps from the Google Maps API, and the package gganimate to make the animation.
A static map:
And there is also the code to make a Plotly one.
Note: last updated on July the 18th, 2018.