16 years, Russia

15 years, Karaganda, Kazakhstan

Russia

35 years, Ukraine

50 years, DAMAS, Syria

16 years, Riga, Latvia

53 years, Russia

23 years, Russia

49 years, Moscow, Russia

19 years, g. Koryazhma (Arkhangel′skaya oblast′), Russia

Kostroma, Russia

101 years, Litva, Belarus

27 years, Russia

18 years, Russia

40 years, Russia

28 years, Saratov, Russia

31 years, Omsk, Russia

34 years, Russia

Engels, Russia

25 years, Moscow, Russia