St. Patrick's Day <br />by the Numbers.<br />Everyone can be <br />Irish for a day on March 17.<br />In the U.S., St. Patrick's Day <br />has evolved into a reason to <br />celebrate your Irish heritage.<br />On average, 13 million pints of Guinness <br />are served on March 17.<br />Chicago has a famous tradition <br />of dyeing its river green.<br />The tradition started in 1942,<br />and takes 40 pounds of dye.<br />Boston is a great place to <br />celebrate with its annual parade.<br />It is the most Irish city in the U.S., <br />with 20.4% of its citizens are of Irish ancestry.<br />79% of celebrators plan to wear green.
