How affordable are F1 races?

This is another post of 'F1 Questions No One Asked.' Today, I'll try to answer the question, "Are F1 races really affordable?"

Here is the plot showing the average price of race tickets as a percentage of monthly salaries in the country. Tickets seem to be the most expensive in Mexico, Brazil, and Azerbaijan. Is this a result of costly tickets or low salaries? Can locals even attend these races or are they for tourists? Are these races a tourist attraction boosting tourism in these countries? Let me know in the comments.

https://preview.redd.it/usfwx4zevade1.png?width=1216&format=png&auto=webp&s=ca8fe045512d4d212f01e2327d92fc2ae65a6928

Part 2 coming up soon.