35 years, Moscow

Smolensk

50 years, Saransk

23 years, Samara

Oryol

25 years, g. Belovo (Kemerovskaya oblast′)

45 years, Saint Petersburg

46 years, g. Novoanninskiy (Novoanninskiy rayon)

29 years, Novokuznetsk

29 years, g. Angarsk (Irkutskaya oblast′)

46 years, Ryazan

30 years, Moscow

42 years, g. Kuvandyk (Kuvandykskiy rayon)

40 years, g. Volzhskiy (Volgogradskaya oblast′)