Americans could spend nearly $ 5 billion celebrating St. Patrick 's Day this year . Emerald green is the 2013 Pantone color of the year . Comment:
Americans could spend nearly $ 5 billion celebrating St. Patrick 's Day this year . Emerald green is the 2013 Pantone color of the year . With almost 35 million citizens of Irish ancestry , U.S. remembers Ireland in town names .