The variance is partly offset by additional provision for the travel of contingents caused by an increase in airfares and by additional provision for rations based on the actual costs in the current 2005/06 period.
19. 由于机票费上涨造成特遣队旅行经费增加而且按照2005/06年当期实际费用计算的口粮费增加，部分抵销了上述差异。