Phantom islands are islands that are believed to exist and appear on maps for a period of time (sometimes centuries), and they are removed after they are proven not to exist (or the general population stops believing that they exist).
... 64, and 17.2% who are 65 years of age or older. The median age is 41 years. For every 100 females there are 92.6 males. For every 100 females age 18 and over, there are ...