Writing and Publishing

I was interested in your response to Question No. 579, in which you say that the subculture of Taker culture is growing explosively and could be as large as 2-3 million in 2002, from something like twenty thousand in 1992. If I quote this to someone and they ask where it came from and I say, “from Daniel Quinn”, the answer is going to be “Oh, he would say that”. So where do your estimates come from? From sales of Ishmael? From a gut feeling? Or where? Just for interest, are you able to reveal the global sales figures for Ishmael? At least I could quote that to people with some sense of satisfaction.