Amazon just revealed its sales performance of 2015 Christmas shopping season. It made another great harvest year.

The statistics showed, there were over 3 million users registered Amazon Prime service in the third week of December. The annual fee for Prime service is $99, including 2-day free delivery, free streaming movie and music services.

Amazon announced other 100 items’ sales performances. BusinessInsider concluded 9 items of craziest performance.

1. For the voice command that Alexa is built in Echo received, the most frequent demand was “Play Music”. The most popular songs are White Christmas, Sleigh Ride and Winter Wonderland.

2. Alexa helped users to set alarms for 4 million times via voice command to remind them to cook.

3. The kids subscribed a great amount of books via Amazon FreeTime. If they are printed ones, their length could be 10 times of the length of Everest.

4. The cumulative reading time of The Martian via Kindle is 1,000 times of the traveling time for Curiosity Rover that reaches Mars.

5. Users purchased a great amount of Rope Kine Twine on Amazon. The total length could be the distance from Seattle to Los Angeles.

6. The quantities of sticky hooks that users purchased on Amazon amount to the popular of Orlando city. Orlando city center owned 220,000 people according to the data made in 2006.

7. It sold abundant JENGA as well. The assembly heights amount to 70 Empire State Buildings.

8. Jurassic World movie DVD was sold well. Their cumulative heights are 2,700 times of Tyrannosaurus Rex’ height.

9. On Cyber Monday, Amazon sold out one CD of Adele Adkins each three seconds.