Im currently around 950, my peak was 1100 on 20 dec, and i can say that all you have mentioned is correct for average players who play chess for fun, serious players like me who want to improve play chess about 1-2 hrs a day and study it for 1 hr daily.
Most are amateurs who play an average of six or seven games a week, study chess problems, openings etc, about 2 hours a week, and have a rating of 900-1100. If anyone has more precise knowledge on these matters, I would appreciate your input.