It noted that it is a very difficult case, because information is confusing and numbers vary a lot: figures offered by various sources all show a strong decrease, which is not surprising given the measures Colombia has taken in this regard.
因为信息混乱，关于人数的说法不一。 不过，各种来源提供的数据表明人数在减少。 考虑到哥伦比亚在这方面采取的措施，就毫不奇怪。