SNG Rate At Levels

Hello..This post is geared towards those who 8 table 20's, 30's, 50's, 100's and 200's. I have been playing stricly 20's for the past month and 8 table on my 2 Dell2001fps =] (yes they're amaznig) I was wondering...What is the average hourly rate of those of you that play 50's, 100's, and 200,'s profesionaly. I am currently in school and I am workign to consitently play 1500 SNGS a month at the 55 and 109 levels so I was wondering around what hourly rates you guys get there and how many it is possible to play a month before going INSANE lol. Also how many SNGS do you play a month.....
PS. Please do not flame me. I have read the Faq and this is not in it and I am just asking a question. If you do not like the post just dont help in the discussion thanks....T