St. Patrick's Day <br />by the Numbers Everyone can be <br />Irish for a day on March 17. In the U.S., St. Patrick's Day <br />has evolved into a reason to <br />celebrate your Irish heritage. On average, 13 million pints of Guinness <br />are served on March 17. Chicago has a famous tradition <br />of dying its river green. The tradition started in 1942,<br />and takes 40 pounds of dye. Boston is a great place to <br />celebrate with its annual parade. It is the most Irish city in the U.S., <br />with 20.4% of its citizens are of Irish ancestry. 72% of Americans 18-34 years <br />old plan to celebrate the Irish holiday this year.
