Collecting information reflecting quarterly and annual realized investment capital situation of enterprises, cooperatives, farms, households, communes/wards/towns, non-business units, Departments of Finance, ministries, The central sector serves as the basis for calculating the indicators of investment capital for the whole society under the National Statistical Indicator System, serving State agencies at all levels to evaluate the investment performance, assess the impact of capital investment. investment in economic growth, economic restructuring, infrastructure development of the country.