Amazon Subscription Services Sales

Amazon defines this as:

Includes annual and monthly fees associated with Amazon Prime membership, as well as audiobook, e-book, digital video, digital music, and other subscription services.

2014: $2.762 billion, 2015: $4.467 billion, 2016: $6.394 billion.

Last reported quarter 2018 Q3 it was $3.70 billion, up by 51% year-over-year from $2.44 billion. From $6.39 billion in 2016 it increased by 52% to $9.72 billion in 2017.

Source: Amazon Quarterly Results.