By the beginning of 1921, money has lost 96% of its pre-war value; industrial production has fallen to 10% of its 1913 level. The population of Petrograd has fallen from 2.5 million in 1917 to 600,000 in 1920. (0 ч 58 мин, 1 янв 1921 г. – 15 ч 14 мин, 31 дек 1921 г.)
