My T told me once that seeing 27 clients a week is considered a full load for therapists. Of course, if a T sees 27 a week, they could still have a lot more clients than that because they don't see every client every week. (I see my T once every 3-4 weeks.) I am pretty sure my T sees more than 27 clients a week. He works about 4 ten hour days. He is very busy and it takes about 3 weeks for me to get an appointment with him, so if I wanted to see him more frequently than 3 weeks apart, I would have to schedule more than one appointment in advance.
Rainbow, I'm not sure why a T wouldn't want a client to know that sort of thing. I never asked--my T volunteered this information.
I did ask my T, though, if he ever slept on the couch in his office when he had an empty slot during the day. This was during my "exhausted" phase and I just thought it would be so great to have an hour break during the day and a couch to take a nap on.

My T said in all his 30 years of practice, he had only slept a couple of times.