Which proves that data from google trends should be taken with skepticism. A google search is not causation. It failed miserably in predicting flu season about a decade ago when data scientists misinterpreted why people were googling flu. In your case, Halloween has virtually no presence in Mexico City where Day of the Dead celebrations last for days and attract millions of the cultural center of the city.
RetireToAdventure t1_iujpmhs wrote
Reply to comment by latinometrics in [OC] Halloween has become more popular than Day of the Dead in Mexico. by latinometrics
Which proves that data from google trends should be taken with skepticism. A google search is not causation. It failed miserably in predicting flu season about a decade ago when data scientists misinterpreted why people were googling flu. In your case, Halloween has virtually no presence in Mexico City where Day of the Dead celebrations last for days and attract millions of the cultural center of the city.