In 2011 Apple increased the availability of the iPhone by adding operators. In 2012 Apple increased availability by bringing the phone to operators more quickly. The question is: how much did iPhone 5 availability increase, exactly?
There is a way to find out. As an approximation, Apple periodically reports the availability of new iPhones by country. For example, Apple stated that they reached 100 countries for the iPhone 5 before 2012 ended. They also gave similar launch data for the iPhone 4S. Graham Spencer did a good job showing how country roll-outs changed over time.
However, country-level availability is not ideal because countries vary greatly in their ability to absorb iPhones. Announcing availability in Mauritius is not nearly as important as announcing Madagascar. A better measure would be to track the countries’ populations being added, or, better still, the populations which subscribe to operators who have a distribution contract with Apple.
Which is what is shown in the following graph:
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