Reasonable times that pop off the top of my head are about 1 reel per week for cutting DX or FX, but sometimes 2 reels per week for cutting FX on a tight time budget (did that on my mosta recent feature - not ideal turn around time, but still doable). Figure about 8-12 hours per day of wrokwork, and you'll be able to figure out how many human hours.
A good rule of thumb I learned for cutting dialogue is to meet a minimum benchmark of 1 hour per 1 minute of dialogue. I average around 1 hour per 2 minutes of dialogue, but it has taken some time to ramp up to this speed while still maintaining quality of work.
As for the other categories, it I can't provide a definite answer because it's not something I've "timed out" really or done enough of to accurately gauge a time.