Whether any study was conducted into the value that the taxpayer receives for every rand spent on public health; if not, (a) why not and (b) how does his department (i) determine whether the taxpayer is receiving value for money and (ii) identify inefficiencies in the system; if so, (aa) what were the findings, (bb) when was it conducted, (cc) by whom was it conducted, (dd) how was the value for money measured and (ee) how does South Africa compare with other countries in this regard?