(a) What number of employees left the employ of the SA Revenue Service (SARS) since 1 January 2017 and (b) in respect of each specified employee, what are the details of the (i) names, (ii) qualifications, (iii) experience held, (iv) number of years of service at SARS, (v) position held, (vi) date of resignation and (vii) reasons for leaving the employ of SARS, including reasons given by each employee in case of resignations?