Not quite sure what *not statistically countable" is supposed to mean, GUEST. Perhaps you are trying to imply that the number is so small as not to be statistically significant.

Any Highland Games Committee will know exactly how many people will have gone through the turnstiles for any given event. If anybody were sufficiently motivated to discover the exact number of Americans who attend "Scottish related activities", it would be a relatively simple matter to aggregate the totals for each event, and arrive at a "at least" grand total.

Not as many as attend baseball or football matches, for sure, but a not insignificant number nonetheless, I would wager.

Murray