Amazon said tonight that it added more than 3 million new Amazon Prime members globally in just one week at the height of the holiday shopping season this year. It’s the latest sign of growth for the company’s $99/year free-shipping and video-streaming subscription service, which has emerged as a key driver of its business.

The company doesn’t publicly disclose the actual number of Amazon Prime members, just saying it’s in the “tens of millions.” But one analyst estimated in September that there were as many as 60 million to 80 million Prime members globally before the holiday season began. Netflix, by comparison, reports 69 million members globally.

It’s the latest sign of a successful holiday for the Seattle company, at the conclusion of one of the most eventful years in its history. In its core e-commerce business, Amazon is trying to extend its online lead over traditional competitors like Target and Walmart, while keeping an eye on new rival Jet.com.

In keeping with its annual tradition, Amazon issued an epic post-holiday news release, featuring cherry-picked growth stats and whimsically imprecise factoids, such as, “Amazon.com customers purchased enough LEGOs this holiday season to build life-sized replicas of every person attending a sold-out Seattle Mariners game at Safeco Field.”

Overall, Amazon described it as a “record-breaking holiday.” The company hinted at strong holiday sales via Prime, with providing actual sales numbers. For example, the company said, “over 200 million more items shipped for free with Prime this holiday season.”

“This was another great holiday season to be a Prime member, and we welcomed three million new members in the third week of December alone,” said Amazon CEO Jeff Bezos in the news release. “Over 200 million more items shipped for free with Prime this holiday, and members doubled their viewing hours of Prime Video compared to last year with the Amazon Original Series The Man in the High Castle leading the way as the most watched TV season ever on Prime Video.”

Last holiday, Amazon described the number of new Prime members in different way — saying instead that “10 million new members worldwide tried Prime for the first time” during the 2014 holiday season. The different time frame makes it difficult to decipher a trend. We’ve asked Amazon to clarify whether this year’s “3 million in one week” included free trials in addition to paying members.

Update: In a follow-up message, a company representative declined to say whether the number of new subscribers includes free trials.

Here’s the full text of this year’s release. (Post updated to include correct release.)

SEATTLE–(BUSINESS WIRE)–Dec. 28, 2015– (NASDAQ: AMZN) — Amazon’s 21st holiday was a record-breaker for Amazon Prime, Amazon Original Series and Amazon devices. More than three million members worldwide joined Prime during the third week of December, bringing milestone growth to the membership program which offers unlimited Free Two-Day shipping, Free Same-Day Delivery, superfast free two-hour delivery via Prime Now in more than 20 metro areas, and unlimited access to tens of thousands of movies and TV episodes, including award-winning Amazon Original Series at no additional cost. Prime members made The Man in the High Castle the most watched TV season on Prime Video this holiday by 4.5x and doubled their total viewing hours of Prime Video titles, compared to 2014. This holiday was also the best ever for Amazon devices, doubling last year’s record-setting shopping season with millions of devices sold. Among Amazondevices, the all-new Fire tablet was the #1 best-selling, most gifted and most wished-for product across the millions of items available on Amazon.com since its introduction 15 weeks ago.

“This was another great holiday season to be a Prime member, and we welcomed three million new members in the third week of December alone,” said Jeff Bezos, Founder and CEO ofAmazon.com. “Over 200 million more items shipped for free with Prime this holiday, and members doubled their viewing hours of Prime Video compared to last year with the Amazon Original SeriesThe Man in the High Castle leading the way as the most watched TV season ever on Prime Video. On behalf of Amazon employees around the world, we wish everyone happy holidays and the very best for the coming year.”

Holiday Fun Facts

Amazon Prime:

Record number of units shipped worldwide with Amazon Prime.

More than three million customers joined Prime in the third week of December.

Amazon Prime membership continues to grow, and there are tens of millions of members worldwide.

Record number of movies watched on Prime Video in 2015.

Prime members made The Man in the High Castle the most watched TV season on Prime Video by 4.5x.

the most watched TV season on Prime Video by 4.5x. This holiday, Prime members doubled their viewing hours of Prime Video titles, compared to 2014.

Prime members shopped more than 30,000 Lightning Deals on Amazon.com with Prime Early Access.

Christmas Eve was the biggest day ever for Prime Now deliveries.

Amazon devices including the all-new Fire tablet, Amazon Echo and Fire TV Stick made up three of the top five items ordered on Christmas Eve through Prime Now.

Some of the most popular Prime Now best sellers during the holidays were Simply Orange Juice, Bounty Paper Towels and Haribo Gold-Bears.

A record number of songs were streamed with Prime Music this holiday season—worldwide Prime Music plays set an all-time record increasing more than 350 percent compared to 2014.

Prime members shopping via mobile more than doubled this holiday in the US.

Members worldwide uploaded more than a billion photos for free with Prime Photos this holiday.

Kindle Paperwhite, Cards Against Humanity and Fitbit Charge were the most popular items ordered with Prime FREE Same-Day Delivery this holiday.

Shipping:

Amazon shipped to 185 countries this holiday.

The last Prime Now order delivered in-time for Christmas was delivered at 11:59 p.m. on Christmas Eve to a customer in San Antonio, Texas. The order included Blue Buffalo Dog Treats, an Amazon.com Gift Card, the all-new Fire tablet, Fruitables Dog Treats, LEGO Star Wars Death Star Final Duel Building Kit, Moleskine Classic Notebook and Stove Top Stuffing Mix.

The last Prime FREE Same-Day Delivery order from Amazon.com that was delivered in time for Christmas was ordered at 9:58 a.m. on December 24, 2015. The order included Bluetooth Headphones, and was delivered in Phoenix by 2:59 p.m. – the same day.

Amazon Devices & Digital Media:

Biggest holiday ever for Amazon devices – up 2x over last year’s record-setting holiday.

Amazon devices were top-selling products across all of the items available on Amazon.com this holiday season – #1 was Fire, #3 was Fire TV Stick.

The all-new Fire tablet and Amazon Echo topped this year’s most wished-for and gifted items for Amazon.com customers.

The most popular movie watched on Prime Video this holiday season was The Hunger Games: Mockingjay Part 1 .

. The most popular movie watched on Prime Video on Christmas was Interstellar .

. Amazon Originals have been nominated for nearly 40 awards in 2015 including five Golden Globe nominations , two Screen Actors Guild nominations and eight Critics’ Choice nominations—series nominated include Transparent, Mozart in the Jungle, Catastrophe, The Man in the High Castle, and more .

two Screen Actors Guild nominations and eight Critics’ Choice nominations—series nominated include and more Amazon Studios released its first Original Movie Chi-Raq on December 4 to rave reviews. The film, from director Spike Lee, has gone on to be included in several end of the year “Best Film Lists” from LA Weekly , The New Yorker, The Washington Post, The Los Angeles Times, Slant, New York magazine and Vulture .

on December 4 to rave reviews. The film, from director Spike Lee, has gone on to be included in several end of the year “Best Film Lists” from , and . Amazon Prime members can instantly watch and enjoy the latest Amazon Original Series including The Man in the High Castle, Red Oaks, Hand of God, and the second season of Transparent as well as the second seasons of Amazon Original Kids Series Tumble Leaf and Gortimer Gibbons Life on Normal Street on hundreds of devices.

and the second season of as well as the second seasons of Amazon Original Kids Series and on hundreds of devices. The most common request of Alexa over the holiday season was “play music”—the top three holiday songs requested of Alexa on Amazon Echo this holiday season were “White Christmas,” “Sleigh Ride” and “Winter Wonderland.”

Alexa helped set over four million timers this holiday season—ensuring holiday cookies were never burnt.

Customers enjoyed hearing Christmas jokes and holiday trivia from Alexa this season, and on Christmas Eve, the “Santa’s Helper” skill helped customers track Santa as he made his way around the world.

The top holiday related utterance requested via Alexa on Fire TV was “How many days until Christmas?” this holiday season.

The top holiday song requested via Alexa on Fire TV was “ Santa Claus is Coming to Town ,” followed by “ Jingle Bell Rock .”

,” followed by “ .” Chinese restaurants were the most requested type of food on Christmas day via local search from Yelp on Amazon Echo.

The top streamed holiday movie available on Amazon Video on Fire TV was Christmas Classics Volume 1 (a collection of 8 Christmas classics such as Rudolf the Red-Nosed Reindeer and Frosty the Snowman).

(a collection of 8 Christmas classics such as Rudolf the Red-Nosed Reindeer and Frosty the Snowman). Popular FreeTime Unlimited holiday titles enjoyed by kids in 2015 were Dora Saves the Snow Princess (Dora the Explorer) , Olaf’s Adventures – FreeTime Unlimited Edition and Timmy’s Christmas Surprise .

, and . The hours that kids spent reading in Amazon FreeTime this holiday season was enough time to travel beyond our solar system on a space shuttle.

The books read by kids in Amazon FreeTime this holiday season would reach Mt. Everest’s peak more than 10 times if put in a straight line in their physical form.

Adele— 25 was the biggest pre-sale digital album ever on Amazon Music.

was the biggest pre-sale digital album ever on Amazon Music. Michael Bublé— Christmas was the most played holiday album on Prime Music this season.

was the most played holiday album on Prime Music this season. The most popular holiday song streamed on Prime Music during the holidays was Perry Como—“(There’s No Place Like) Home for the Holidays ” (1959 Version).

(1959 Version). The most played holiday Prime Playlist was 50 Great Songs for Holiday Entertaining .

. The most played holiday Prime Station was Holiday Classics .

. Plays of holiday music on Prime Playlists and Stations increased by more than 300 percent compared to 2014.

This holiday season there have been millions of streams of Christmas in Tahoe— the first-ever holiday album from Train, available exclusively for streaming on Prime Music.

the first-ever holiday album from Train, available exclusively for streaming on Prime Music. Amazon released its second annual collection of original holiday music with Indie for the Holidays , a playlist that features artists and bands including, YACHT, Rogue Wave, Langhorne Slim, Tuxedo, Ivan & Alyosha, The LeeVees & Matisyahu, A Silent Film and more, singing newly-written or recorded holiday songs exclusively streaming on Prime Music.

, a playlist that features artists and bands including, YACHT, Rogue Wave, Langhorne Slim, Tuxedo, Ivan & Alyosha, The LeeVees & Matisyahu, A Silent Film and more, singing newly-written or recorded holiday songs exclusively streaming on Prime Music. The most popular holiday song streamed on Prime Music on Christmas was “The Christmas Song (Merry Christmas to You)” by Nat King Cole.

Worldwide on December 24, AutoRip added more than one million digital copies of The Beatles albums into customers’ Music Libraries for free, providing digital AutoRip copies of physical albums purchased from Amazon since 1998.

Amazon Underground customers spent enough time playing apps and games throughout the holiday season to watch the entirety of Christmas classic movies, Home Alone , It’s a Wonderful Life and National Lampoon’s Christmas Vacation more than a million times.

, and more than a million times. The top book purchased on Kindle in 2015 was The Girl on the Train: A Novel by Paula Hawkins.

by Paula Hawkins. The most gifted Kindle book during the holiday season was Rath’s Deception by Piers Platt.

by Piers Platt. The top book borrowed on Kindle through Kindle Unlimited in 2015 was No Ordinary Billionaire by J.S. Scott.

by J.S. Scott. The most popular Kindle book purchased on Christmas day was The Snow Child: A Novel (Pulitzer Prize in Letters: Fiction Finalists) by Eowyn Ivey.

Customer Purchases:

Nearly 70 percent of Amazon.com customers shopped using a mobile device this holiday.

On Cyber Monday, Amazon customers worldwide ordered more than 33 electronics per second from a mobile device.

Amazon.com customers shopping on the mobile app more than doubled this holiday.

The total number of hours customers spent reading The Martian: A Novel by Andy Weir in 2015 on Kindle is equivalent to more than 1,000 trips to Mars on the Curiosity rover.

by Andy Weir in 2015 on Kindle is equivalent to more than 1,000 trips to Mars on the Curiosity rover. Handmade at Amazon sold enough rings this holiday season to give 13 to every contestant who has been on ABC’s The Bachelor .

. The heaviest item purchased on Amazon Business this holiday season, a BendPak Super-Duty automotive lift, weighs as much as the average beluga whale.

Amazon.com customers purchased enough Rope King Twine this holiday season to tie a string from Seattle to Los Angeles.

Amazon.com customers purchased enough Rubbermaid 42-Piece Storage Containers this holiday season to pack leftovers for the entire Los Angeles County area.

Amazon.com customers purchased enough GREENIES pet treats this holiday season to give each of Santa’s reindeer 20 per second on Christmas Day.

Amazon.com customers purchased enough Cat Dancer 301 Cat Charmer Interactive Cat Toys this holiday season to give 92 to each of the participants from all 21 seasons of Dancing with the Stars.

Amazon.com customers purchased enough flashlights this holiday season to satisfactorily light eight collegiate football fields in accordance with NCAA standards.

Amazon.com customers purchased enough Command Hooks this holiday season to hang a stocking for every person in Orlando, Florida.

Amazon.com customers purchased enough LEGOs this holiday season to build life-sized replicas of every person attending a sold-out Seattle Mariners game at Safeco Field.

Amazon.com customers purchased enough Anki OVERDRIVE Starter Kits this holiday season to wrap around the Daytona International Speedway more than 10 times.

Amazon.com customers purchased enough Jenga sets this holiday season to reach the top of the Empire State Building more than 70 times.

Amazon.com sold enough HotHands Hand Warmers this holiday season for more than eight million hours of hand warming.

If every Just Dance 2016 video game purchased by Amazon.com customers this holiday season was played to completion by one person, he or she would be dancing until 2081.

video game purchased by Amazon.com customers this holiday season was played to completion by one person, he or she would be dancing until 2081. Customers across 10 countries took advantage of Amazon’s first global Black Friday Deal of the Day, and purchased enough Sennheiser headphones to give a pair to every person at a sold-out Rolling Stones concert in 2015.

This holiday season, Amazon.com customers purchased more than enough 50-inch TVs to span the average width of the Grand Canyon.

Amazon.com customers purchased enough storage drives this holiday season to download and watch the first two seasons of Transparent more than eight million times.

more than eight million times. Amazon.com customers purchased enough Jurassic World DVDs this holiday season to equal the height of more than 2,700 Tyrannosaurus Rex.

DVDs this holiday season to equal the height of more than 2,700 Tyrannosaurus Rex. On Cyber Monday alone, Amazon.com customers purchased one Adele CD every three seconds.

Amazon.com customers purchased enough women’s boots this holiday season that, if stacked on top of each other, they would be high enough to reach the orbit of the International Space Station.

Amazon.com customers purchased enough running shoes this holiday season to give every participant of the New York, Chicago, and Boston marathon three pairs of shoes – one for each race.

Amazon.com customers purchased a watch every three seconds this holiday season.

Laid out end-to-end, the number of jeans Amazon.com customers purchased this holiday season would cover the driving distance between San Francisco and Los Angeles.

Customers shopping at smile.amazon.com have generated tens of millions of dollars for their favorite charities since the program was launched.

So far, over 100,000 organizations have received donations from AmazonSmile. One of those charities, Pencils of Promise, used AmazonSmile donations to build a school in Ghana for preschool and primary aged students.

Holiday Best Sellers (Amazon.com only):