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Facebook Messenger reactions are The Erotic Witch Project 4: Lust in Spacehere to stay.

Over the last couple years, Facebook's iconic like button has been expanded with "reactions," a larger choice of responses on Facebook. A little over a year since the launch of Facebook reactions, they're now on posts, messages, and even comments.

SEE ALSO: Wow! Facebook comments now have Reactions, too

The reactions came to Messenger just a few months ago, and have already been sent over 2 billion times, the company announced on Wednesday. To put that into perspective, at last count, Facebook Messenger announced a staggering 1.2 billion users. Messenger also features the site's closest thing to a dislike button in the form of the 'no' reaction.

To mark the milestone, the company released some insights into how Messenger Reactions are used around the world. The 'love' reaction is the most popular on Messenger, while the 'no' one is the least popular. The positive reactions are all more popular than the negative reactions.

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Original image has been replaced. Credit: Mashable

Here are the most popular reactions by country in select countries:

Original image has been replaced. Credit: Mashable

Young millennials, defined as those ages 18-24, send reactions twice as frequently as older age groups and are also more likely to send a wider range of reaction. Facebook also found that on average more men send reactions whereas women send reactions more frequently.

While the like button continues to remain a definitive symbol for Facebook, the company has already started weighing reactions more when deciding what to show on your News Feed.

UPDATE: June 7, 2017, 1:17 p.m. EDT This story was updated with a correction from Facebook about the name of the 'no' reaction.

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