I can't exactly remember how many times the total number of Break N' Runs I had. but I can give you the recent ones, in a span of 6 months (2-3 times a month during weekends, atleast 3 hours of play). I don't get to play much pool as I did before, so spare me.
9ball on 9 footers - 2 break and runs.
8ball on 9 footers - 2 break and runs
rotation on 9 footers - 1 break and out and 1 out.
(IIRC, I think I had my first 1 out (after my opponent's break) when I was still in college. the table layout was a sellout. easy to run,lol). though I remember having some decent runs ( 7-8 successive balls) and some other shots (caroms and combos) which are much better.