Hi 5/0,
Wow. Hadn't thought of that question before.
Don't know. Depends on the day. Like the others said, if it's a really good day and they seem to like one or two patterns, then not many. On a long day or one with very picky fish, LOTS of flies.

Don't know that I can really give a number, seems like lots. (If I have to add tippet more than a couple times, then it really is lots!)
Dewey