I used to think that fluid milk consumption was somewere around 60-70% of total milk produced.  When the milk price went down the tubes a few years back,  I had my eyes opened on that figure.  I think I was told fluid milk consumption is actually somewhere in the neighborhood of 30-35% ( someone can correct that figure if you have a more accurate one).

Which leads me to the point that maybe having kids eat cheese, etc, is just as good a way to get their daily dairy consumption - and all the nutrients that go with it.