section_path: Usage/Levels of use
section_name: Levels of use
paragraph_text: Levels of use
  
  According to research published in April 2014, around 44% of user accounts have never tweeted. About 22% of Americans say they have used Twitter, according to a 2019 Pew Research Center survey. In 2009, Nielsen Online reported that Twitter had a user-retention rate of 40%. Many people stop using the service after a month; therefore the site may potentially reach only about 10% of all Internet users. Noting how demographics of Twitter users differ from the average Americans, commentators have cautioned against media narratives that treat Twitter as representative of the population, adding that only 10% of users Tweet actively, and that 90% of Twitter users have Tweeted no more than twice. In 2016, shareholders sued Twitter, alleging it "artificially inflated its stock price by misleading them about user engagement". The company announced on September 20, 2021, that it would pay $809.5 million to settle this class-action lawsuit.