Netflix is known for two things: first, for the uninterrupted release of new movies and serials, and second, for not publicly viewing these films and serials.
Over the years, Netflix has released some viewership data. These revelations, sometimes shared on social networks and sometimes found in company profit reports, have been somewhat criticized. It should be borne in mind that Netflix does not employ a standalone company to measure program viewership. As well, these figures come without the context needed to truly understand whether a production has been successful.
According to Netflix, it counts as a watch when a member sees at least 70% of the movie or series.
Orange Is The New Black (2013-2019): 105 million views

Murder Mystery (2019): 73 million views
Stranger Things: Season 3 (2016-): 64 million views
Triple Frontier (2019): 63 million views
The Perfect Date (2019): 48 million views
Bird Box (2018): 45 million views
The Umbrella Academy (2019-): 45 million views

Money Heist (La Casa de Papel) (2017-): 44 million views
Tall Girl (2019): 41 million views
The Highwaymen (2019): 40 million views

You (2018-): 40 million views
Sex Education (2019-): 40 million views

Secret Obsession (2019): 40 million views
Our Planet (2019): 33 million views
Always Be My Maybe (2019): 32 million
Unbelievable (2019): 32 million views
Dead to Me (2019-): 30 million views
Otherhood (2019): 29 million views

When They See Us (2019): 25 million views
Fyre: The Greatest Party That Never Happened (2019): 20 million views
Elite (2018-): 20 million views