What is approx. percentage of your total

I have about 2,000 cleaned and ready to play and maybe a few hundred to clean. Any collection mostly sits on a shelf. Even if I haven't played a particular one in years, it's nice to know there's a nice copy ready when I want it. I also have a hard time not buying different pressings of the same title if it's one I like. A backup pressing or two of favorites is also nice. More and more I'm trying to thin the collection out to no more than two or three good pressings of any given title and most titles only one.

I have about 75,000 albums and listen to 15.

Audiofeil, that's humorous. It's like saying "I've got a drawer full of silverware, but I use always use the same fork."

I kind of get into rotations of groups of LP's and those are on a separate shelf. I would say that my "rotations" are usually 50 or so at a time.
Maybe over the course of the year, I actually listen to about 1,000 or so different records.