A centenarian is a person who is at least 100 years old. Centenarians are honored by television shows such as NBC's Today show, where, each day, a person of at least 100 is shown during the weather report. When this practice first started a number of years ago, there were days when no one was honored. Recenty, however, the number of centenanans has increased so dramatically that those shown are selected in a random drawing. The last census reportrd that there were over 35,000 centenarians living in the United States, more than double the number ten years ago. The U.S. Census Bureau estimates that within a hundred years, there will be more than one million centenarians in the country.