The coverage is determined in Official Statistics Programme. It covers almost every kind of statistics needed about country's economic, social, demographic, cultural, environmental, scientific, technological fields and other fields and the determination and follow-up of the situation of the country. Data and methods about all official statistics to be produced are opened to public.
Not open. Legal page suggests there are restrictions on commercial use:
Information on the site can be published with statement of source; but this information can not be used for commercial purposes.