That doesn't say anything about consumption rates. We don't even know how many of those 68% even know whether or not they are intolerant. My wife is from Thaila

That doesn't say anything about consumption rates. We don't even know how many of those 68% even know whether or not they are intolerant. My wife is from Thailand where lactose intolerance is statistically very high and yet milk consumption appears to be widespread. They even have milk-based products that are not seen in the West, for example milk-based sodas and soft drinks.