So it's very common for writers to ask why agents don't give feedback. The answer, usually, is that we're busy--but that's hard to grasp on a concrete level. Today, the lovely and talented @BenFaulknerEd mentioned reading tons, and out of curiosity, I did the math to compare.
So we get (I did the math awhile ago) an average of 39.98 queries a workday times 5 days = 2,158 pages/month from queries. I probably read an average of 2/10 of the included pages, so that's 1 query + 2 pages times 2,158 = 6,474 pages/month.