“Stranger Things” Season 2 just dropped last week, but the show pulled in impressive numbers in a very short amount of time.

According to Nielsen data released Thursday, each episode of the season drew more than 4 million viewers per episode, and with more than 3 million of those falling in the key adults 18-49 demographic within the first three days of its release (Oct. 27-29). Episode 1 of the new season averaged a whopping 15.8 million viewers with approximately 11 million in the key demo, also within the first three days. And for the true bingers out there, 361,000 people watched all nine episodes of the season within the first 24 hours of its release.

As a whole, the season averaged 8.8 million viewers per episode with 6.2 million in the key demo.

Nielsen also determined that the average number of “Stranger Things” episodes that people in the U.S., 18-49 watched was 2.9, meaning that viewers who watched this program binged on approximately 3 episodes at a time. Additionally, according to Nielsen Social data, there were 7.2 million social interactions across Facebook and Twitter about “Stranger Things” over the first three days.

The most watched episodes are listed in order below. All measure viewership over the first three days.

“Chapter One” averaged 15.8 million viewers and 11 million people 18-49

“Chapter Two” averaged 13.7 million viewers and 9.6 million people 18-49

“Chapter Three” averaged 11.6 million viewers and 8.1 million viewers 18-49

“Chapter Four” averaged 9.3 million viewers and 6.6 million viewers 18-49

“Chapter Five” averaged 8 million viewers and 5.6 million viewers 18-49

“Chapter Six” averaged 6.4 million viewers and 4.5 million viewers 18-49

“Chapter Seven” averaged 5.3 million viewers and 3.7 million viewers 18-49

“Chapter Eight” averaged 4.9 million viewers and 3.4 million viewers 18-49

“Chapter Nine” averaged 4.6 million viewers and 3.2 million viewers 18-49

The numbers come shortly after Nielsen announced they would make new efforts to measure TV-show audiences of select subscription video on demand services. However, Netflix previously said it would not be participating in the new service.

“The data that Nielsen is reporting is not accurate, not even close, and does not reflect the viewing of these shows on Netflix,” the company said in a statement at the time of the original announcement.