(a) What is the total number of critical skills personnel who are (i) employed in each public health care facility in each province, (ii) trained locally and (iii) sourced from other countries, (b) which countries do the specified personnel come from, (c) what is the current vacancy rate of critical skills in each public health care facility in each province and (d) what is the breakdown of the type of critical skills shortages in each public health care facility in each province?