Those in the middle years play more then the very young and the very old. Catholics play more then Protestants. Education, there is a fairly monotonic affect, the more education you have the less you play on average. That's again on average, there would be exceptions in all of these cases. Laborers tend to play more then advanced professionals.
Income is a very important number and it comes back into discussion of regressivity.
Our data showed no relationship between the dollars played and income. So that is on average people in the middle played, bet as many dollars as those at the bottom or those at the top. It varied a little by game, especially when the jackpot got bigger, the number at the top got up a little bit higher. As one's income gets bigger, then a constant amount of spending which is essentially what it is in the lottery case is going to be smaller for those at the top than those at the bottom. And that's about as sophisticated a mathematical question as I'm going to pose to you.