I would start by contacting the 4 largest manufactures to find out how many boats they have sold since 1975. I don't know if the figures are published, but if you have a good reason and promise not to release the numbers of the individual manufactures they might help you.
Matt
<img src="http://www.catsailor.com/forums/images/graemlins/laugh.gif" alt="" /> <img src="http://www.catsailor.com/forums/images/graemlins/laugh.gif" alt="" /> <img src="http://www.catsailor.com/forums/images/graemlins/laugh.gif" alt="" /> <img src="http://www.catsailor.com/forums/images/graemlins/laugh.gif" alt="" />
Yeah, right. After that, he can call the Iranians and the N. Koreans and ask them to please stop their nuclear programs. When he's done with that, he can forge a lasting peace in the Middle East.
Nobody gives out production numbers. To anybody. For any reason. Period.