Syr Darya (also known as Syrdarya or Sirdaryo) is a river in Central Asia. It rises in two headstreams in the Tien Shan mountains in eastern Uzbekistan, it flows for some 2,220 km (1,380 miles) west and north-west through southern Kazakhstan to the Aral Sea.
The name is a relatively recent one in western writings; prior to the early 20th century, the river was known as the Jaxartes.
... 18 to 24, 17.6% from 25 to 44, 20.5% from 45 to 64, and 14.1% who are 65 years of age or older. The median age is 28 years. For every 100 females there are 82.8 males. ...