Statutory interests in the Member States

1 Is "statutory interest" provided for in the Member State? If so, how is "statutory interest" defined in this Member State? 2 If yes, what is the amount/rate and legal basis for it? If different rates of statutory interest are provided for, what circumstances and conditions apply? 3 If necessary, is there further information available on how to calculate statutory interest? 4 Is there free online access available to the legal basis mentioned above?