It wasn't crowded. This was every pass all weekend. 7 sessions at about 12 laps per session = 80 laps give or take.
I counted about 50 passes. Doesn't necessarily mean I wasn't in traffic for 30 laps, but I'd guess I had at least that many laps all to myself.
I think I was on track with about 20 other cars most of the weekend, with that number dwindling on my last session. I even skipped the last session, so there were others who probably enjoyed a fairly empty track late Sunday afternoon.