Spinjitzu is a subtheme of Ninjago that was introduced in 2019 and currently consists of 6 sets. As of today, the average annual growth of all the sets in Ninjago Spinjitzu is around 18.0% but this should level out to around 12.6% in the coming years. This change in annual growth is primarily due to the initial retirement of these sets.
LEGO Ninjago, also known as Ninjago: Masters of Spinjitzu, theme was introduced in 2011 and included sets that are based off of original storylines, a TV series and The LEGO Ninjago Movie, a movie based on the theme. The main premise of the Ninjago universe is based around six teenage Ninja, Kai, Jay, Cole, Zane, Nya, and Lloyd, who have been trained by their master Sensei Wu, fighting forces of evil to protect the land of Ninjago.