Whether his department has conducted an audit on the need for infrastructure improvement in preparation for the implementation of the National Health Insurance; if not, why not; if so, (a) how many nursing colleges require (i) minor refurbishment, (ii) major and (iii) complete rebuilding in each province and (b) what is the (i) backlog in each province and (ii) targeted number of units to be built in each province for the (aa) 2011-12 and (bb) 2012-13 financial years?