(a) How many Reserve Force members were employed in the SA National Defence Force in the (i) 2012-13, (ii) 2013-14 and (iii) 2014-15 financial years and (b) which of the specified members’ services were employed on a continuous basis (i) for six months or less, (ii) between six and twelve months, (iii) between 12 and 18 months, (iv) between 18 and 24 months, (v) between 24 and 30 months and (vi) between 30 and 36 months?