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how are the percentages broken up for cards given over Father's Day?
group 1: to DADS
group 2: purchased BY WIVES TO HUSBANDS
group 3: GRANDFATHERS, SONS, BROTHERS, UNCLES, ETC.
Sons and daughters send 50 percent of the Father's Day card to their dads. Nearly 20 percent of Father’s Day cards are purchased by wives for their husbands. That leaves 30 percent of the cards which go to grandfathers, sons, brothers, and uncles.