We get the impression that SpongeBob SquarePants disappeared from the screens, and yet it remains well present. In 1999, more than 20 episodes were broadcast. Then, the number of annual episodes decreased with 7 episodes per year between 2000 and 2007, after that it increased to 10 episodes per year between 2008 and 2011, 13 episodes per year between 2011 and 2012, and finally it fell to 4 episodes per year between 2012 and 2017.
The last season is season 10. It began in October 2016. An eleventh season was ordered, with 26 new episodes.
With the series, movies, derivatives, the SpongeBob SquarePants franchise is estimated at USD 8 billion for the company Nickelodeon.
See also: SpongeBob SquarePants Season 9.