What (a) number of international trips did (i) she and (ii) the Deputy Minister undertake (aa) in the (aaa) 2013-14 and (bbb) 2014-15 financial years and (bb) since 1 April 2015, (b) was the (i) destination and (ii) purpose of each trip and (c) amount did each trip cost in terms of (i) flights, (ii) accommodation and (iii) any other related expenses?