This map shows the number of mobile phones per 100 citizens for a subset of the world's countries based on data from Wikipedia's List of countries by number of mobile phones in use.
Hong Kong has the highest number with 236.8 mobile phones per 100 citizens, which is barely recognizable without zoom, click in Taiwan to zoom in on the region and you should be able to make out Honk Kong.
North Korea has the lowest ratio with 8.3 mobile phones per 100 citizens. For the majority of countries the data is from 2013 or 2014, but some numbers are older, e. g. Bulgaria, Israel and New Zealand (2008) and Jordan (2010), maybe I should remove them from the map, because you can't really compare their numbers.
You can see the data value for an individual geographic unit (e .g. country, state, county) by moving the mouse over it.
You can zoom in by clicking on a unit and zoom out by clicking on the same unit or any point on the map outside of units.
Click on the button in the top menu to see the IPython notebook with the code to retrieve and process the data.
Click on the button in the top menu to see the data table used for the maps.
Click on the button to download the currently displayed map as a PNG image.
If you see in the top menu you can choose a color scheme from the drop down displayed on click.
If there is a menu item named
Choose Dataset on the left in the top menu, you can choose different data series to display on the map from that drop down.