27 years, Yerevan
43 years, Razdan, Kotaykskaya oblast′
24 years, Gyumri (Leninakan, Kumayri, Aleksandropol′), Shirakskaya oblast′
23 years, Yerevan
33 years, HRAZDAN
39 years, Yerevan
36 years, Gyumri
32 years, Hrazdan
39 years, Saratov, Saratovskaya oblast′
39 years, Yerevan
29 years, IDJEVAN
34 years, Stepanavan, Loriyskaya oblast′
28 years, Yerevan
18 years, Арташат
16 years, Yerevan
21 years, Yerevan
43 years
20 years, Masis
17 years, Idzhevan, Tavushskaya oblast′
27 years, GYUMRI