(1) What percentage of land in private possession, (a) in each province and (b) in total is under the (i) control or (ii) ownership of (aa) white persons, (bb) black persons, (cc) coloured persons, (dd) Indian persons and (ee) foreign citizens; (2) whether he intends determining land possession on a demographic basis; if not, what is the position in this regard; if so, on which provision of the Constitution does he rely in this regard?