How often do your horses have all four shoes on when the farrier comes for the next appointment, in the 5-7 week range?

 Mine have all 4 on all the time , every time. When my young horse was 3 he would lose one occasionally being clumsy but that ended pretty quick. 

99% of the time.

I don't as a rule. I currently have one that will start snatching about 4 weeks because she grows so fast. I keep bell boots on her and tighten the clinches starting about 3 weeks into the shoeing.  That holds her until the farrier comes out next scheduled trip.

I typically have all of mine now, almost all of the time.   Only have the occasional over-reach.  Can't remember the last hind shoe I've lost.

Before this farrier, it was way more common to have lost one or more. 

The vast majority of the time. The last couple times I lost shoes (maybe twice in the past year over a couple horses) were because they went long, which forced my bf to finally shoe my horse. LOL

About 99% of the time. Can't remember the last time my horse pulled a shoe and we are 5-6 weeks between re-sets.

Well ... even if I do have a horse pull a shoe, they are going to have one on when the farrier comes back because I'm not letter them sit for 3 weeks without a shoe......

Shoes can and do get bent or pulled. At one point in time, my horse Red was pulling/bending shoes once a week all summer. Different ones every time. Figured out later he had a catchy stifle and a fusing hock and he was probably "scrambling" because of it. Got that in better shape and the shoe pulling stopped.

So normally, it doesn't happen often. Hopefully only once or twice a year. My horses are also pastured 24/7 and they do sometimes run around like goofballs. That's usually where they do it. (Not while riding.)