1931

1931: 137 companies

Yanvar 18 companies

Fevral 9 companies

Mart 9 companies

Aprel 24 companies

May 9 companies

Iyun 7 companies

Iyul 15 companies

Avgust 7 companies

Sentabr 5 companies

Oktabr 12 companies

Noyabr 14 companies

Dekabr 8 companies