Problem: Luke Skywalker is a fictional character and the main protagonist of the original film trilogy of the Star Wars franchise created by George Lucas. The character, portrayed by Mark Hamill, is an important figure in the Rebel Alliance's struggle against the Galactic Empire. He is the twin brother of Rebellion leader Princess Leia Organa of Alderaan, a friend and brother-in-law of smuggler Han Solo, an apprentice to Jedi Masters Obi-Wan "Ben" Kenobi and Yoda, the son of fallen Jedi Anakin Skywalker (Darth Vader) and Queen of Naboo/Republic Senator Padme Amidala and maternal uncle of Kylo Ren/Ben Solo. The now non-canon Star Wars expanded universe depicts him as a powerful Jedi Master, husband of Mara Jade, the father of Ben Skywalker and maternal uncle of Jaina, Jacen and Anakin Solo.

Luke Skywalker was initially called "Luke Starkiller", and went through multiple design changes. The character was at one point designed as a 60-year-old grizzled war hero, later as a Jedi Master, and as a woman. The last name "Starkiller" remained for the first few months of production, Hamill on-camera used the name 'Luke Starkiller" the sole time he referred to himself during filming. "Starkiller" was dropped due to what Lucas called "unpleasant connotations".  An alternative ending pitched by George Lucas for Return of the Jedi was Luke assuming his father's role as Darth Vader after the latter's death and intending to rule in his place. Though Lawrence Kasdan favored the idea, Lucas ultimately declined, since the films were made for children. Another conclusion to the film featured the character disappearing into the wilderness akin to "Clint Eastwood in the spaghetti westerns".  During the filming of the original Star Wars trilogy, George Lucas informed Hamill that he would be needed to reprise the role when he was middle aged. Lucas further explained that his role as Luke would be handing "Excalibur to the next generation". Hamill had no reaction at the time, as he thought of making Star Wars films decades in the future as an abstract concept. Hamill learned of the sequel trilogy over the summer of 2012 at a Star Wars celebration during lunch where Lucas told him one was in development. Hamill recalled shaving his beard to portray The Trickster in The Flash, then letting it grow back for the filming of his scenes.  Luke's lack of screen time in The Force Awakens was due to concerns by screenwriter Michael Arndt that his presence would mean the audience would have less interest in protagonist Rey, leading to an agreement that he be removed from the plot and instead become a plot device. Hamill attended meetings for script readings, and helped conceal Luke's role in the film; instead of dialogue, he read stage directions. Abrams said it allowed him to remain involved and that his reading helped make a "better experience for everyone."

Was Skywalker in other Star Wars movies?

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Indigenous peoples of Mexico (Spanish: pueblos indigenas de Mexico), Native Mexicans (Spanish: nativos mexicanos), or Mexican Native Americans (Spanish: nativo america mexicanos), are those who are part of communities that trace their roots back to populations and communities that existed in what is now Mexico prior to the arrival of Europeans. According to the National Commission for the Development of Indigenous Peoples (Comision Nacional para el Desarrollo de los Pueblos Indigenas, or CDI in Spanish) and the INEGI (official census institute), in 2015, 25,694,928 people in Mexico self-identify as being indigenous of many different ethnic groups, which constitute 21.5% of Mexico's population.
According to the National Commission for the Development of the Indigenous Peoples (CDI), there were 25,694,928 indigenous people reported in Mexico in 2015, which constitutes 21.5% of the population of Mexico. This is a significant increase from the 2010 census, in which indigenous Mexicans accounted for 14.9% of the population, and numbered 15,700,000 Most indigenous communities have a degree of financial, political autonomy under the legislation of "usos y costumbres", which allows them to regulate internal issues under customary law.  The indigenous population of Mexico has in recent decades increased both in absolute numbers as-well as a percentage of the population. This is largely due to increased self-identification as indigenous, as-well as indigenous women having higher birth rates as compared to the Mexican average. Indigenous peoples are more likely to live in more rural areas, than the Mexican average, but many do reside in urban or suburban areas, particularly, in the central states of Mexico, Puebla, Tlaxcala, the Federal District and the Yucatan Peninsula.  According to the CDI, the states with the greatest percentage of indigenous population are: Yucatan, with 65.40%, Quintana Roo with 44.44% and Campeche with 44.54% of the population being indigenous, most of them Maya; Oaxaca with 65.73% of the population, the most numerous groups being the Mixtec and Zapotec peoples; Chiapas has 36.15%, the majority being Tzeltal and Tzotzil Maya; Hidalgo with 36.21%, the majority being Otomi; Puebla with 35.28%, and Guerrero with 33.92%, mostly Nahua people and the states of San Luis Potosi and Veracruz both home to a population of 19% indigenous people, mostly from the Totonac, Nahua and Teenek (Huastec) groups.
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How many different groups of indigenous peoples are included in those statistics?

Answer:
Totonac, Nahua and Teenek (Huastec) groups.