These British royal family members consist of two centenarians, eight nonagenarians, and 17 octogenarians. Shimane prefecture had an estimated 743 centenarians per million inhabitants. Barbados and Japan have the highest per capita occurrences of centenarians in the world. There are more than 400 centenarians in Okinawa. The genetic aspect has also been demonstrated in studies of human centenarians. The incidence of centenarians in Japan was one per 3,522 people in 2008. In Japan, the number of centenarians is highly skewed towards females. In 2012, the United Nations estimated that there were 316,600 living centenarians worldwide. The total number of living centenarians in the world remains uncertain. It has been observed to be common among centenarians. This age is achieved by about one in 1,000 centenarians. He is among a small group of notable centenarians in the field of entertainment. At the end of 2017, there were 1,565 centenarians in Hainan. Many live to advanced ages and some become centenarians. The increase of centenarians was even more skewed at 11.6&colon;1.