Bialystok is the largest city (pop. 286,000 in 2001) in north-eastern Poland and the capital of Podlaskie[?]Voivodship. The city is somewhat famous as the birthplace of L. L. Zamenhof, creator of Esperanto.
... the age of 18, 6.2% from 18 to 24, 17.7% from 25 to 44, 36.0% from 45 to 64, and 12.5% who are 65 years of age or older. The median age is 44 years. For every 100 females ...