Let's see. I don't exactly keep track, but I go to the range at least once a month and I bring at least four of my guns and expend about 200-300 rounds through each.
So, ~9,600 per year on the low end, and ~14,400 on the high end. It is a mix of .22s, .38s, 9mms, .357s, .44specials, .44Mags, and .45s.
I don't own a .40.
The .22 usually always goes to the range, with a mix of other calibers for the other three.