Today, 30 years ago, April 3, 1995 (March 4, 1995), the third national industrial census began. April 3, 1995, the third national industrial census national mobilization call conference was held, the State Council Deputy Prime Minister Zhou Yua said on the phone conference, the second industrial census in 1985 has been 10 years, the total scale of the industrial economy has been rapidly expanded in the 10 years, the economic structure and operation mechanism has also changed greatly. State-owned enterprises in the process of deepening reform and introducing long-term development plans and policies, and more effectively conduct macro-economic control and cooperation with foreign joint ventures, the property structure has changed greatly. Therefore, industrial enterprises to adhere to the practical principles, such as "there must not be a general account", lack of comprehensive, accurate and systemic statistics