Not to nitpick, but just to give a better estimate. I think the 75 would be close to the number that qualify for nationals, not the total in the country. Last year, in the 18 year old group, there were 30 JE's and 56 JO's. I would assume most, if not all, of those are seniors. Additionally, the 17 year old group, would include seniors who have summer birthdays. So, this number could be closer to 100. In the one region that I am familiar with, I believe about half of the 18 year olds at regionals qualified to nationals. That would say that I should estimate another 100 level 10's that didn't qualify, so 200 total in the country.