@2: Yeah, 25% is way too high. There are various studies out there but the values typically fall between 5% - 10%. And of those, from half to two thirds don't get treatment. But to be fair, you also have to take into account people who are treated with anti-depressants preventatively and for other disorders (anti-depressants aren't just for depression). Nonetheless, 25% is insanely high. One study said that the number is 11%, where 61% where taking them for extended periods and only 34% of people with severe depression taking them (which is consistent with the fact that 2/3rds of people with mental illnesses don't get treatment).