https://qz.com/1169701/amazon-amzn-shipped-5-billion-prime-items-to-around-90-million-members-in-2017/

Amazon’s quest for world domination continued in 2017, and today (Jan. 2) it gave us a peek at how ubiquitous it already is.

The company said in a press release that it shipped over 5 billion items from its Prime membership service to subscribers in 2017. It added that there are roughly 100 million items eligible for expedited free shipping through Prime, and research suggests Amazon has around 90 million Prime members. (The company has never disclosed how many members it has or what the service’s retention rate is, though it’s estimated to be ridiculously high.)