Consumer Intelligence Research Partners says Amazon Prime has reached 101M members in the US as of year end 2018
- About 62% of Amazon's US customers are Prime members
- The research says Prime Members spend an average of $1,400 annually versus $600 per year for non-members
- 36% of Prime members pay a monthly fee, 58% are on the annual plan, and 7% are on a free trial, share a membership, or don't know how the fee is paid