The River Tweed (156 Kilometers long) flows primarily through the Borders[?] region of Scotland. Its lower reaches mark the Scots border with England for 27 kilometers near Berwick-upon-Tweed.
... 25 to 44, 21.3% from 45 to 64, and 11.8% who are 65 years of age or older. The median age is 36 years. For every 100 females there are 96.3 males. For every 100 ...