That time range has many things inside it which could explain that drop, e.g. terror attacks, war on terror, banking crashing and seeing "too big to fail" appli

That time range has many things inside it which could explain that drop, e.g. terror attacks, war on terror, banking crashing and seeing "too big to fail" applied to big banks, while people on the street were left to suffer. Before that the 90s with "you should only care for yourself, that way everyone is cared for" and so on.