I am not sure about the numners, but from what I have gathered by putting my trail cams out at scrapes is that one buck does not make a scrape. I have scrapes that will have anywhere from 5-15 different bucks of all sizes coming to a scrape. Then about this time the bigger ones start showing up more and more and the little ones less and less (I guess they get kicked off the scrapes).

I would say there really isnt a limit to how many scrapes a buck will make as long as it is between the range of where the deer normally roams. On some agricultural land that I hunt the south treeline of a wheat feild literally has a scrape every 50 yards and that treeline is 1/2 mile long so you do the math! No matter which scrape I put the camera on I get the same group of bucks.