(1) What are the respective debt levels as a percentage of turnover for the metropolitan local government of (a) Cape Town, (b) Johannesburg, (c) Durban, (c) Nelson Mandela Bay (Port Elizabeth), (e) Bloemfontein and (f) Tswane (Pretoria); (2) whether any of their credit ratings were lowered in the past two years; if not, what is the position in this regard; if so, what are the relevant details?