I always looked at it this way... 52 weeks in a year and if I flew two hours every week as a private pilot that's 104 hours.
Which is why you see most non-commercial private pilots flying those rough numbers Ted gave. To hit 208 a year means four hours a week. 416 means eight hours in the air a week.
You probably see how that works.
In our co-ownership not everyone hits those higher numbers every year but usually at least one of us does.
This year since I'm splitting time on a rented twin for multi-engine training, I'll be lower than usual in the 182. One of the other co-owners is flying quite a bit, the other is pretty low this year.
Sounds like your co-ownership has multiple active pilots this year. It's not always that way, nor do I think from talking to others in co-ownership a and clubs, all that common.
Clubs can be eye opening when you're one of the folks looking over the books. 50% or more of the pilots don't fly and subsidize the others. Often way way way more than 50% don't fly.
I asked why once of the other officers in a club many moons ago as a young pup, and the best answer we could come up with was, "People like to dream that they're actually doing stuff, and dues are low enough that they just keep paying them. Initial buy in is also high enough that they think, 'If I fly this year I'll save by not leaving and coming back...'"