Construction and assembly production implemented in the national economy, including sales of construction and assembly production in construction units hiring more than 9 employees by departments, groups and ownership forms, types of facilities, locations of performing works (voivodships); sales of construction and assembly production outside the borders of Poland by construction and non-construction enterprises hiring more than 9 employees, price indices of construction and assembly production. Material effects of construction (residential buildings commissioned for use: the number of dwellings, rooms, useful floor area of dwellings, cubature, building type, form of construction, construction technology, average duration of construction; commissioned buildings not intended for residential use – number, cubature and useful floor area), dwellings in residential buildings (number, useful floor area, number of rooms, forms of construction), number of civil engineering land and water structures. Permits issued for constructing new residential and non-residential buildings and civil engineering land and water structures. Dwellings the construction of which has been started.