Without heroes, we cannot have monsters. If there were no monsters to cause problems, we would have no need for superheroes. The only reason heroes are present is because they feel that it is their duty to fight off the monsters, and protect humankind from evil.
Here is a part you can use. :)
Answer:
12 months
Explanation:
I mean, I think this is more of a psychology question, but yeah. I believe its around 12 month.