In 1998, there were 135,000 centenarians in the world. By 2050, there will be 2.2 million centenarians, that is one of every 5,000 people. The largest centenarian populations in 2050 are projected to be in China with 472,000, the United States with 298,000, Japan with 272,000, and India with 111,000. By 2050, Japan will have the highest proportion of centenarians, 2.6 per thousand of the total population, or 2.2 per cent of the oldest-old. Its total number of centenarians will be 272,000: 40,000 males and 232,000 females. Finland, Italy, Norway, Singapore and Sweden will have slightly below two per one thousand people.