Figures based on seizures at ports and available from those relatively few countries that perform boarding and seizures at sea suggest that maritime trafficking is responsible for an important part of overall trafficking.
港口稽查取得的数字以及少数几个实施登船检查和海上稽查的国家提供的数字，都表明海上贩运是整个贩运的一个重要组成部分。