One of the times I was on jury duty, we sat in the pool room for about 3 hours during which each of the 7 trials scheduled on that day fell through and ended in

One of the times I was on jury duty, we sat in the pool room for about 3 hours during which each of the 7 trials scheduled on that day fell through and ended in a plea bargain. We were dismissed before noon after a brief explanation. Of course, this is just a single data point, and take it as you will. It only happened once during my service, but it did happen. As such, I'd find your 75% figure believable. This was a local district court, and I guarantee nearly all of those were drug-related charges.