The figures in the OP are just sad
I would hope that college-educated young people would have some natural curiosity, enough to read at least a book a year.
I grew up in a house full of books. My parents were readers, though not as obsessively as I am. I have always been a compulsive reader by nature so when I ran out of kids' books I would go read my parents'. My husband and siblings are more occasional readers (if something interests them or they have down time on vacation, that sort of thing). Now I have the house with the overstuffed bookshelves and one kid who loves to read and the other one who only enjoys reading a very narrow category of book (he does, however, write, so there is hope for him yet).