¹ Concerns units employing more than 9 persons and conducting economic activity within the scope of the following areas: forestry, logging and related service activities; sea fishing; mining and quarrying; manufacturing; electricity, gas and water supply; construction; wholesale and retail trade; repair of motor vehicles, motorcycles and personal and household goods; hotels and restaurants; transport, storage and communication; real estate activities, renting of machinery and equipment without operator and of personal and household goods, computer and related activities, other business activities, collection and treatment of sewage and of other waste, sanitation, remediation and similar activities; recreational, cultural and sporting activities and other service activities.