161 Number of weeks Swiss tennis pro Roger Federer has been the world's top-ranked men's player, a new record
30 Number of years it took someone to beat American Jimmy Connors' former record of 160 weeks
2¢ Increase in the cost of mailing a first-class letter, to 41¢, and a postcard, to 26¢, if the U.S. Postal Service carries out a recommended price hike in May
41¢ Price of the first edition of a proposed "forever" stamp that would be sold in limited quantities and remain valid even if stamp prices go up again. Successive forever stamps would be sold at...
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