Since the induction of the Cuban doctor training programme, what (a) amount has each province spent on the training of doctors in the specified programme in each financial year, (b) number of students (i) have been sent for training in each financial year, (ii) have completed the training programme, (iii) have returned to South Africa to complete their studies and (iv) have completed their studies and (c) number of the specified students are currently practising as doctors in the country?