Conversation so far:
What languages are/were spoken by the Indigenous people of mexico?
62 indigenous languages as "national languages" which have the same validity as Spanish in all territories where they are spoken.
What is the most popular (or a few of the most spoken) language(s) from these 62 ?
which have the same validity as Spanish in all territories where they are spoken.
Are there different culturally different people residing in different territories ?
recognition of indigenous languages and the protection of indigenous cultures is granted not only to the ethnic groups indigenous to modern-day Mexican territory.
What is significant or unique about the ethnic groups and or their culture ?
6,913,362 people 3 years of age or more who spoke an indigenous language .
What indigenous language did they speak ?
indigenous groups that migrated to Mexico from the United States in the nineteenth century and those who immigrated from Guatemala.
What work or occupations were they involved in ?
CANNOTANSWER.
What more does the article say about Spanish and other indigenous languages ?
However, in the 2010 census, this approach was changed and the Government also began to collect data on people 3 years and older.

Question: What did the government do with this data collected ?
Self-contained rewrite: What did the government do with the data collected from the Indigenous peoples of Mexico?