New Delhi: According to official figures issued on Monday, production in eight core industries increased by 3.8 percent in December 2021, compared to a contraction of 0.4 percent the previous month. With the exception of crude oil and steel, all sectors grew in December 2021. In November 2021, the sectors had grown by 3.4 percent. During April-December this fiscal, the growth rate of the eight infrastructure sectors --coal, crude oil, natural gas, refinery products, fertilisers, steel, cement, and electricity -- was 12.6 percent, compared to a negative 9.8 percent during the same period last fiscal. The Economic Survey, which was submitted in Parliament on Monday, also stated that the current financial year has been an outstanding year for the primary market, with firms from all sectors, particularly start-ups and unicorns, tapping the public markets in record numbers. Economic survey presented in Parliament, general budget will come tomorrow Startup ecosystem generated more than 6 lakh jobs to date: President Infrastructure, foundation for development: President Kovind