Under Amazon's massive umbrella of businesses lies Amazon Prime, the paid membership program that provides members with access to a laundry list of benefits including free two-day shipping and unlimited access to Prime Video and Music. Since it first launched in 2005, the service has grown in leaps and bounds and successfully created a loyal customer base. According to $4 estimates charted here by $4, Amazon Prime gained 25 million paying members in only a year.
CIRP also estimated that 63% of all Amazon customers are Prime members. Given that Prime members spend more on average than non-members ($1,300 a year versus $700 for non-members), this is great news for Amazon. The list of perks continues to add up, and in September 2017, 95% of Prime members reported they had no plans to cancel their membership.
![10 19 2017 chart](https://static-ssl.businessinsider.com/image/59e8f3a4ddd0632d008b5a7b-1201/10-19-2017-chart.png)
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