18. 面对上述扩大情况，秘书处低估了这些实体所需支助的规模和范围，支助部分总人数仅从原来的 249 人增至 450 人，预算从 2.15 亿增至 6 亿美元，增长系数分别为 1.8 和 2.8 倍。
18. In responding to this expansion, the Secretariat has underestimated the scale and scope of demands that support to these entities would entail, with the overall support component expanding from 249 to 450 personnel and the budget from $215 million to $600 million, growth factors of 1.8 and 2.8 times, respectively.